Exhibit B

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the common stock, par value $0.01 per share, of Mack-Cali Realty Corporation.

Dated: February 17, 2004	/s/ William L. Mack
	William L. Mack
Dated: February 17, 2004	/s/ Earle I. Mack
	Earle I. Mack
Dated: February 17, 2004	/s/ Mitchell E. Hersh
	Mitchell E. Hersh
Dated: February 17, 2004	/s/ David S. Mack
	David S. Mack
Dated: February 17, 2004	/s/ Fredric Mack
	Fredric Mack
Dated: February 17, 2004	/s/ Richard Mack
	Richard Mack
Dated: February 17, 2004	/s/ Stephen Mack
	Stephen Mack
Dated: February 17, 2004	/s/ Andrew Mack
	Andrew Mack
Dated: February 17, 2004	/s/ Beatrice Mack
	Beatrice Mack
Dated: February 17, 2004	/s/ David S. Mack
	David S. Mack, as Trustee for The David and Sondra Mack Foundation
Dated: February 17, 2004	/s/ Earle I. Mack
	Earle I. Mack, as Trustee for the Earle I. Mack Foundation
Dated: February 17, 2004	/s/ William L. Mack
	William L. Mack, as Trustee for Trust William Mack A

Dated: February 17, 2004	/s/ William L. Mack
	William L. Mack, as Trustee for Trust William Mack 4/30/92
Dated: February 17, 2004	/s/ Phyllis Mack
	Phyllis Mack, as Trustee for Trust f/b/o Richard Mack
Dated: February 17, 2004	/s/ Phyllis Mack
	Phyllis Mack, as Trustee for Trust f/b/o Stephen Mack