1 EXHIBIT 23.5 CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS We hereby consent to the incorporation by reference in the Prospectus constituting a part of this Registration Statement of our report dated March 23, 1998, relating to the consolidated financial statements and schedules of National Realty, L.P. appearing in the Partnership's Annual Report on Form 10-K for the year ended December 31, 1997. We also consent to the references to us under the caption "Experts" in the Prospectus. /s/ BDO SEIDMAN, LLP -------------------- BDO Seidman, LLP Dallas, Texas December 2, 1998