EXHIBIT 23.4
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
    We hereby consent to the incorporation by reference in the Prospectus
constituting part of this Registration Statement on Form S-3 (No. 333-      ) of
our report dated October 19, 1997, on our audit of the Statement of Revenue and
Certain Expenses for the McGarvey Portfolio, of our report dated October 15,
1997, on our audit of the Statement of Revenue and Certain Expenses for
Princeton Overlook, of our report dated November 18, 1997, on our audit of the
Statement of Revenue and Certain Expenses for The Trooper Building, and of our
report dated December 22, 1997, on our audit of the Statement of Revenue and
Certain Expenses for 500 West Putnam, appearing in Mack-Cali Realty
Corporation's Current Report on Form 8-K dated January 16, 1998.
 
We also consent to the incorporation by reference of our report dated April 6,
1998, on our audit of the Statement of Revenue and Certain Expenses for the
McGarvey Portfolio, of our report dated March 29, 1998, on our audit of the
Statement of Revenue and Certain Expenses for 500 West Putnam, of our report
dated March 27, 1998, on our audit of the Statement of Revenue and Certain
Expenses for Mountainview, of our report dated March 30, 1998, on our audit of
the Statement of Revenue and Certain Expenses for Cielo Center, of our report
dated April 8, 1998, on our audit of the Statement of Revenue and Certain
Expenses for the Pacifica Portfolio, of our report dated May 29, 1998, on our
audit of the Statement of Revenue and Certain Expenses for 500 College Road, of
our report dated May 29, 1998, on our audit of the Statement of Revenue and
Certain Expenses for the D.C. Portfolio, of our report dated May 30, 1998, on
our audit of the Statement of Revenue and Certain Expenses for 400 South
Colorado, and of our report dated June 4, 1998, on our audit of the Statement of
Revenue and Certain Expenses for 3600 S. Yosemite, appearing in Mack-Cali Realty
Corporation's Current Report on Form 8-K dated June 12, 1998.
 
We also consent to the reference to us under the heading "Experts" in such
Prospectus.
 
                                  /s/ SCHONBRAUN SAFRIS MCCANN BEKRITSKY & CO.,
                                  LLC
                                  Schonbraun Safris McCann Bekritsky & Co., LLC
 
Roseland, New Jersey
January 25, 1999