EXHIBIT 99.1

Mack-Cali Realty Corporation
11 Commerce Drive
Cranford, New Jersey 07016

Via EDGAR

Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549

Re:   Mack-Cali Realty Corporation
Quarterly Report on Form 10-Q for the quarter ended September 30, 2002

Ladies and Gentlemen:

        Transmitted herewith are written statements pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to accompany the above-referenced periodic report.

    Very truly yours,

 
 
MACK-CALI REALTY CORPORATION

 
 
By:
/s/  ROGER W. THOMAS      
Roger W. Thomas
Executive Vice President,
General Counsel and Secretary