EXHIBIT 32.2

                      RECKSON OPERATING PARTNERSHIP, L.P.

           CERTIFICATION OF MICHAEL MATURO, EXECUTIVE VICE PRESIDENT,
    TREASURER AND CHIEF FINANCIAL OFFICER OF RECKSON ASSOCIATES REALTY CORP.,
        THE SOLE GENERAL PARTNER OF RECKSON OPERATING PARTNERSHIP, L.P.,
  PURSUANT TO SECTION 1350 OF CHAPTER 63 OF TITLE 18 OF THE UNITED STATES CODE

I, Michael Maturo, Executive Vice President, Treasurer and Chief Financial
Officer of Reckson Associates Realty Corp., the sole general partner of Reckson
Operating Partnership, L.P. (the "Company"), certify pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

     1)  The Quarterly Report on Form 10-Q of the Company for the quarterly
         period ended March 31, 2004 (the "Report") fully complies with the
         requirements of Section 13(a) or 15(d) of the Securities Exchange Act
         of 1934 (15 U.S.C. 78m or 78o(d)); and

     2)  The information contained in the Report fairly presents, in all
         material respects, the financial condition and results of operations of
         the Company.


Dated:  May 7, 2004


              RECKSON OPERATING PARTNERSHIP, L.P.
                   By: Reckson Associates Realty Corp., its sole general partner


                                    By /s/ Michael Maturo
                                       -----------------------------------------
                                       Michael Maturo, Executive Vice President,
                                       Treasurer and Chief Financial Officer

A signed original of this written statement required by Section 906 has been
provided to Reckson Operating Partnership, L.P. and will be furnished to the
Securities and Exchange Commission or its staff upon request.