Exhibit 10.19 FIRST AMENDMENT TO CONTRIBUTION AGREEMENT FIRST AMENDMENT TO CONTRIBUTION AGREEMENT dated as of May 8,1998 among HOST MARRIOTT CORPORATION, a Delaware corporation ("HMC"), HOST MARRIOTT, L.P., a Delaware limited partnership ("Operating Partnership"), HTKG DEVELOPMENT ASSOCIATES, a California limited partnership ("HTKG"), BRE/BURTON WAY L.L.C., a Delaware limited partnership ("Burton Way"), and the other Contributors (as defined below). Background ---------- HMC, Operating Partnership, HTKG, Burton Way, and the other contributors named therein (HTKG, Burton Way and such other contributors, collectively, the "Contributors") are parties to that certain Contribution Agreement dated as of April 16, 1998 (the "Contribution Agreement"). All capitalized terms used herein and not otherwise defined herein shall have the meanings ascribed to such terms in the Contribution Agreement. HMC, Operating Partnership, HTKG, Burton Way and the other Contributors have agreed to amend the terms of the Contribution Agreement as provided herein. Agreement --------- 1. Section 1.4 of the Contribution Agreement is hereby amended by deleting the date "May 11, 1998" wherever it appears therein, and substituting the date "May 18,1998" therefor. 2. The parties hereto acknowledge and agree that contribution of the Beverly Hills Loan has been authorized by all of the members of BRE/Burton Way L.L.C. (the Contributor of the Beverly Hills Loan), and that the Beverly Hills Loan will not be excluded from the transactions contemplated by the Contribution Agreement under Section 7.3(b) thereof. 3. The Contribution Agreement, as amended hereby, is and shall remain in full force and effect and is ratified and confirmed. IN WITNESS WHEREOF, the parties hereto have executed this First Amendment as of the date written above. HOST MARRIOTT CORPORATION By: /s/ CHRISTOPHER J. NASSETTA ---------------------------------- Name: Christopher J. Nassetta Title: Executive Vice President and Chief Operating Officer HOST MARRIOTT, L.P. By: HMC Real Estate Corporation, its general partner By: /s/ CHRISTOPHER J. NASSETTA ------------------------------- Name: Christopher J. Nassetta Title: Vice President HTKG DEVELOPMENT ASSOCIATES LIMITED PARTNERSHIP By: BRE/Burlingame II, L.L.C. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President BRE/BURTON WAY L.L.C. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President BRE/SWISS L.L.C. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President BRE/LAFAYETTE INC. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President BRE/SWISS MANAGEMENT L.L.C. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President 2 BRE/HT L.L.C. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President BRE/CAMBRIDGE L.L.C. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President BRE/RESTON L.L.C. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President BRE/GRAND L.L.C. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President BRE/AMELIA PARTNERS L.P. By: BRE/Amelia L.L.C., general partner By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President BRE/AMELIA L.L.C. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President OLS HOTEL PARTNERS L.P. By: BRE/Logan Hotel Space Inc. By: /s/ JONATHAN GRAY ------------------------- Jonathan Gray Vice President RTZ MANAGEMENT CORP. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President BRE/RITZ BOSTON, L.L.C. By: /s/ JONATHAN GRAY ------------------------------- Jonathan Gray Vice President 3