Mr. Birnbaum began his career in 1972 at the side of the legendary Edward
S. Gordon developing and implementing strategies for leasing vacant office towers. He also brokered lease transactions on
behalf of tenants, created the market research department and was responsible for hiring, training and managing brokerage
In 1981 Mr. Birnbaum founded American Realty Advisors, Inc. to provide brokerage
and consulting services in NYC office leasing. In 1987 he sold the firm to the successor of Merrill Lynch Commercial Services
of New York, Inc. and was appointed SVP and Manager of the New York office of this publicly owned international developer
(L J Hooker) and served as liaison for the firm's 22 offices across America.
1990 he rejoined Edward S. Gordon Company, Inc which had evolved into Insignia ESG (today CBRE). Next served as Managing
Director at Colliers ABR, Inc. Today part of Cushman & Wakefield.
Over the span
of his career, Mr. Birnbaum represented such notable clients as Arent Fox, Broadcort Capital, Carret & Company, LLC.,
500 Park Avenue Associates, Fuji Bank, Ltd., Kidder Peabody, Frank Russell Trust Company, KLM Royal Dutch Airlines, Paul Hastings
Janofsky & Walker, Reebok International, Ltd., St. David’s School, Solow Development Corporation, Sony Corporation
of America and Venable LLP.
Recent office leasing projects include: Beverage
Marketing Corp. of NY; Blue Sky Venture Managers d/b/a Innervation Capital ; Earth Day Network; Hong Kong Tourism Board; InvestIndustrial
; NYC Office Suites ; Stella and Charles Guttman Foundation; T.D. Asset Management; The Howard Gilman Foundation; Manhattan
Orthopedic and Sports Medicine Group.
Mr. Birnbaum has bought, sold, financed, leased
and managed a variety of small properties for his own account.