Gary L. Birnbaum is the Managing Director of Mariscal, Weeks, McIntyre & Friedlander, P.A., a general civil practice law firm based in Phoenix. Associate Dean Birnbaum has significant experience in all aspects of commercial and real estate litigation, and has also handled business, real estate and securities transactions in various contexts. He teaches advanced courses on Private Property Rights and Advanced Topics in Business Law: Valuation of Interests in Real Estate and Closely-Held Businesses at the College of Law. 

Associate Dean Birnbaum is a well-known lecturer on business and real estate valuation topics and has been a contributor to the Commercial Real Estate Transactions Practice Manual, published by the State Bar of Arizona, and to Nichols on Eminent Domain, published by Matthew Bender. He has served as Chairman of the Law Practice Management Section of the State Bar of Arizona and is a member of the National Panel of Arbitrators of the American Arbitration Association and The Counselors of Real Estate. Associate Dean Birnbaum has also been elected a Fellow of the American College of Trial Lawyers and the College of Law Practice Management. For many years he has been listed in The Best Lawyers in America (currently in Business Litigation, Real Estate, Alternative Dispute Resolution Condemnation/Eminent Domain and Legal Malpractice Defense) and has been recognized on many other “Best Lawyers” lists.

Associate Dean Birnbaum also is a faculty member and one of the founders of ASU's transdisciplinary Master of Real Estate Development program.