QuickLinks -- Click here to rapidly navigate through this document


Exhibit 23.4


CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

        We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated February 24, 2004 relating to the consolidated financial statements and financial statement schedule, which appears in Mack-Cali Realty Corporation's Annual Report on Form 10-K for the year ended December 31, 2003. We also consent to the incorporation by reference of our report dated February 24, 2004 relating to the consolidated financial statements and financial statement schedule, which appears in Mack-Cali Realty, L.P.'s Annual Report on Form 10-K for the year ended December 31, 2003. We also consent to the reference to us under the heading "Experts" in such Registration Statement.

/s/ PRICEWATERHOUSECOOPERS LLP
PricewaterhouseCoopers LLP
New York, New York
June 30, 2004




QuickLinks

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM