UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 15)* Riviera Holdings Corp. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock, $.001 per share -------------------------------------------------------------------------------- (Title of Class of Securities) 769627100 -------------------------------------------------------------------------------- (CUSIP Number) Andrew J. Perel Cadwalader, Wickersham & Taft LLP One World Financial Center New York, New York 10281 (212) 504-6656 -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) May 16, 2007 -------------------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of ss.ss. 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box [ ]. Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties to whom copies are to be sent. *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page. The Information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Flag Luxury Riv, LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 418,294 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 0 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 418,294 ----------------------------------- 10 SHARED DISPOSITIVE POWER 0 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 418,294 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.36% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Flag Luxury Properties, LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 418,294 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 418,294 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 418,294 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.36% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) MJX Flag Associates, LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 418,294 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 418,294 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 418,294 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.36% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) LMN 134 Family Company LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 418,294 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 418,294 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 418,294 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.36% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Mitchell J. Nelson -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION United States -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 418,294 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 418,294 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 418,294 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.36% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON IN -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) ONIROT Living Trust dated 6/20/2000 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 418,294 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 418,294 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 418,294 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.36% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) RH1, LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Nevada -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 418,294 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 0 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 418,294 ----------------------------------- 10 SHARED DISPOSITIVE POWER 0 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 418,294 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.36% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Flag Leisure Group, LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 836,588 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 836,588 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 836,588 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.71% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) MJX Real Estate Ventures, LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 836,588 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 836,588 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 836,588 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.71% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Robert Sillerman -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION United States -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 836,588 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 836,588 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 836,588 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.71% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON IN -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Paul Kanavos -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION United States -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 836,588 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 836,588 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 836,588 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.71% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON IN -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Brett Torino -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION United States -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 836,588 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 836,588 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 836,588 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.71% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON IN -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Rivacq LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 627,442 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 0 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 627,442 ----------------------------------- 10 SHARED DISPOSITIVE POWER 0 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) SOF U.S. Hotel Co-Invest Holdings, L.L.C -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) SOF-VII U.S. Hotel Holdings, L.L.C. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) I-1/I-2 U.S. Holdings, L.L.C. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Starwood Global Opportunity Fund VII-A, L.P. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON PN -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Starwood Global Opportunity Fund VII-B, L.P. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON PN -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Starwood US Opportunity Fund VII-D, L.P. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON PN -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Starwood US Opportunity Fund VII-D-2, L.P. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON PN -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Starwood Capital Hospitality Fund I-1, L.P. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON PN -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Starwood Capital Hospitality Fund I-2, L.P. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON PN -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) SOF-VII Management, L.L.C. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) SCG Hotel Management, L.L.C. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Starwood Capital Group Global, LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS AF -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION Connecticut -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 0 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 0 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 627,442 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.03% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO -------------------------------------------------------------------------------- CUSIP NO.: 769627100 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Barry S. Sternlicht -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) |_| (b) |X| -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e) |_| -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION United States -------------------------------------------------------------------------------- 7 SOLE VOTING POWER NUMBER OF 123,200 SHARES ----------------------------------- BENEFICIALLY 8 SHARED VOTING POWER OWNED BY EACH 627,442 REPORTING ----------------------------------- PERSON 9 SOLE DISPOSITIVE POWER 123,200 ----------------------------------- 10 SHARED DISPOSITIVE POWER 627,442 ----------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 750,642 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES |_| -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.02% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON IN -------------------------------------------------------------------------------- This Amendment No. 15 amends and supplements the statement on Schedule 13D (the "Statement") originally filed with the Securities and Exchange Commission on December 28, 2005, and amended by Amendment No. 1 on March 3, 2006, Amendment No. 2 on March 23, 2006, Amendment No. 3 on April 5, 2006, Amendment No. 4 on May 18, 2006, Amendment No. 5 on August 2, 2006, Amendment No. 6 on August 4, 2006, Amendment No. 7 on March 12, 2007, Amendment No. 8 on March 23, 2007, Amendment No. 9 on March 26, 2007, Amendment No. 10 on March 30, 2007, Amendment No. 11 on April 17, 2007, Amendment No. 12 on April 27, 2007, Amendment No. 13 on May 4, 2007 and Amendment No. 14 on May 15, 2007 by Flag Luxury Riv, LLC; Flag Luxury Properties, LLC; MJX Flag Associates, LLC; Flag Leisure Group, LLC; MJX Real Estate Ventures, LLC; LMN 134 Family Company LLC; Mitchell Nelson; ONIROT Living Trust dated 6/20/2000; Robert Sillerman; Paul Kanavos; RH1, LLC; Brett Torino; Rivacq LLC; SOF U.S. Hotel Co-Invest Holdings, L.L.C.; SOF-VII US Hotel Holdings, L.L.C.; I-1/I-2 U.S. Holdings, L.L.C.; Starwood Global Opportunity Fund VII-A, L.P.; Starwood Global Opportunity Fund VII-B, L.P.; Starwood U.S. Opportunity Fund VII-D, L.P.; Starwood U.S. Opportunity Fund VII-D-2, L.P.; Starwood Capital Hospitality Fund I-1, L.P.; Starwood Capital Hospitality Fund I-2, L.P.; SOF-VII Management, L.L.C.; SCG Hotel Management, L.L.C.; Starwood Capital Group Global, LLC; and Barry S. Sternlicht with respect to the common stock, par value $0.001 per share, of Riviera Holdings Corporation, a Nevada corporation. Unless otherwise indicated, each capitalized term used but not defined herein shall have the meaning assigned to such term in the Statement. From and after the date hereof, all references in the Statement to the Statement or terms of similar import shall be deemed to refer to the Statement as amended and supplemented hereby. The Reporting Persons have entered into a Fifth Amended and Restated Joint Filing Agreement, dated as of May 3, 2007, a copy of which was filed as Exhibit 10.20 to the Statement, and which is incorporated herein by reference. Neither the fact of this filing nor anything contained herein shall be deemed an admission by the Reporting Persons that they constitute a "group" as such term is used in Section 13(d)(1)(k) of the rules and regulations under the Securities Exchange Act of 1934, as amended. ITEM 1. SECURITY AND ISSUER Response unchanged. ITEM 2. IDENTITY AND BACKGROUND Response unchanged. ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION Response unchanged. ITEM 4. PURPOSE OF TRANSACTION Item 4 is hereby supplemented as follows: On May 16, 2007 Paul Kanavos sent a letter to the Board (the "May 16, 2007 Letter"), on behalf of an investing group led by Mr. Kanavos, Robert Sillerman, Brett Torino and Barry Sternlicht (the "Investment Group"), proposing to acquire, through a merger transaction with the Investment Group's acquisition vehicles, all of the issued and outstanding Company Stock at a price of $34.00 per share ("Merger Transaction"). The May 16, 2007 Letter states that the Investment Group is prepared to enter into a merger agreement with the Company on substantially the same terms as the April 5, 2006 merger agreement between the Investment Group's acquisition vehicles and the Company. The Investment Group is prepared to provide the Board with assurances for the necessary debt financing to complete the proposed Merger Transaction, and the Investment Group is committed to provide all necessary equity financing for the proposed Merger Transaction. The Investment Group is also prepared to include a "go shop" provision in the proposed merger agreement pursuant to which the Company could solicit and engage in discussions and negotiations with respect to competing proposals for a 15 day period. If the Company were to terminate the proposed merger agreement because it received a superior proposal during the "go shop" period, the Investment Group would not be entitled to any additional break-up fee but would only be entitled to reimbursement for its expenses in connection with the proposed Merger Transaction, up to a reasonable limit. The conditions to close the proposed Merger Transaction would be substantially the same as those contained in the April 5, 2006 merger agreement. The Investment Group will not require a financing condition to closing the proposed Merger Transaction and the only significant third-party condition to closing the proposed Merger Transaction is the obtaining of all necessary gaming approvals from the gaming authorities in Nevada and Colorado. The conditions to closing the proposed Merger Transaction will not restrict the Company's ability to refinance its outstanding secured notes, provided that the refinancing is made on market terms and without prepayment penalty, defeasance or premium. The proposed merger agreement is not intended to restrict the Company's ability to conduct its business in the ordinary course while the proposed Merger Transaction is pending. The Investment Group intends to repay all of the Company's outstanding indebtedness of the Company upon completion of the proposed Merger Transaction. The Investment Group is prepared to honor the salary continuation packages currently in place that have been negotiated with management as well as the change-of-control provisions in all currently outstanding stock option awards. The Investment Group indicates in the May 16, 2007 Letter that if Board does not respond to its proposal by 5:00 PM PST on May 17, 2007, then it will assume that the Board does not wish to discuss its proposal any further. There can be no assurance that any such proposed Merger Transaction can be negotiated. The Reporting Persons may, at any time and from time to time, review, reconsider or change their plans or proposals with respect to the foregoing, or terminate such discussions. The foregoing and subsequent references to, and descriptions of, the May 16, 2007 Letter, are qualified in their entirety by reference to such letter, the contents of which are incorporated herein by reference to Exhibit 10.23 hereto. ITEM 5. INTEREST IN SECURITIES OF THE COMPANY Response unchanged. ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS, OR RELATIONSHIPS WITH RESPECT TO SECURITIES OF THE COMPANY. Item 6 is hereby supplemented as follows: 21. On May 16, 2007, Paul Kanavos submitted the May 16, 2007 Letter to the Board, the contents of which are described in Item 4 herein. A copy of the May 16, 2007 Letter is filed herewith as Exhibit 10.23 and incorporated herein by reference. ITEM 7. MATERIAL TO BE FILED AS EXHIBITS. Item 7 is hereby supplemented as follows: 10.23 Letter, dated May 16, 2007 from Paul Kanavos to the Board of Directors of Riviera Holdings Corporation. SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Flag Luxury Riv, LLC By: /s/ Paul Kanavos ------------------------------ Name: Paul Kanavos Title: President Flag Luxury Properties, LLC By: /s/ Paul Kanavos ------------------------------ Name: Paul Kanavos Title: President MJX Flag Associates, LLC By: /s/ Robert Sillerman ------------------------------ Name: Member Title: Robert Sillerman RH1, LLC By: Flag Leisure Group, LLC Its sole member By: /s/ Paul Kanavos ------------------------------ Name: Paul Kanavos Title: President Flag Leisure Group, LLC By: /s/ Paul Kanavos ------------------------------ Name: Paul Kanavos Title: President MJX Real Estate Ventures, LLC By: /s/ Robert Sillerman ------------------------------ Name: Robert Sillerman Title: Member LMN 134 Family Company LLC By: /s/ Mitchell J. Nelson ------------------------------ Name: Mitchell J. Nelson Title: Managing Member Mitchell J. Nelson /s/ Mitchell J. Nelson ------------------------------------ Robert Sillerman /s/ Robert Sillerman ------------------------------------ Paul Kanavos /s/ Paul Kanavos ------------------------------------ ONIROT Living Trust Dated 06/20/2000 By: /s/ Brett Torino ------------------------------------ Name: Brett Torino Title: Trustee Brett Torino By: /s/ Brett Torino ------------------------------------ Rivacq LLC By: SOF U.S. Hotel Co-Invest Holdings, L.L.C. By: SOF-VII U.S. Hotel Holdings, L.L.C. By: /s/ Barry S. Sternlicht ---------------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer By: I-1/I-2 U.S. Holdings, L.L.C. By: /s/ Barry S. Sternlicht ---------------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer SOF U.S. Hotel Co-Invest Holdings, L.L.C. By: SOF-VII U.S. Hotel Holdings, L.L.C. By: /s/ Barry S. Sternlicht ---------------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer By: I-1/I-2 U.S. Holdings, L.L.C. By: /s/ Barry S. Sternlicht ---------------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer SOF-VII U.S. Hotel Holdings, L.L.C. By: /s/ Barry S. Sternlicht ---------------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer I-1/I-2 U.S. Holdings, L.L.C. By: /s/ Barry S. Sternlicht ---------------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer Starwood Global Opportunity Fund VII-A, L.P. By: SOF-VII Management, L.L.C. Its general partner By: Starwood Capital Group Global, L.L.C. Its General manager By: /s/ Barry S. Sternlicht ----------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer Starwood Global Opportunity Fund VII-B, L.P. By: SOF-VII Management, L.L.C. Its general partner By: Starwood Capital Group Global, L.L.C. Its General manager By: /s/ Barry S. Sternlicht ------------------------------ Name: Barry S. Sternlicht Title: Chief Executive Officer Starwood U.S. Opportunity Fund VII-D, L.P. By: SOF-VII Management, L.L.C. ---------------------------------- Its general partner By: Starwood Capital Group Global, L.L.C. Its General manager By: /s/ Barry S. Sternlicht ------------------------------ Name: Barry S. Sternlicht Title: Chief Executive Officer Starwood U.S. Opportunity Fund VII-D-2, L.P. By: SOF-VII Management, L.L.C. Its general partner By: Starwood Capital Group Global, L.L.C. Its General manager By: /s/ Barry S. Sternlicht ------------------------------ Name: Barry S. Sternlicht Title: Chief Executive Officer Starwood Capital Hospitality Fund I 1,L.P. By: SCG Hotel Management, L.L.C. ---------------------------------- Its general partner By: Starwood Capital Group Global, L.L.C. Its General manager By: /s/ Barry S. Sternlicht ------------------------------ Name: Barry S. Sternlicht Title: Chief Executive Officer Starwood Capital Hospitality Fund I-2, L.P. By: SCG Hotel Management, L.L.C. Its general partner By: Starwood Capital Group Global, L.L.C. Its General manager By: /s/ Barry S. Sternlicht ------------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer SOF-VII Management, L.L.C. By: Starwood Capital Group Global, L.L.C. Its General manager By: /s/ Barry S. Sternlicht ------------------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer SCG Hotel Management, L.L.C. By: Starwood Capital Group Global, L.L.C. Its General manager By: /s/ Barry S. Sternlicht ------------------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer Starwood Capital Group Global, LLC By: /s/ Barry S. Sternlicht ---------------------------------------- Name: Barry S. Sternlicht Title: Chief Executive Officer Barry S. Sternlicht /s/ Barry S. Sternlicht ------------------------------------------ Dated: May 16, 2007