Mr. Birnbaum began
his career in 1972 at the right hand 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 personnel.
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 Real Estate
Director to Hooker Retail and liaison for the firm's 22 brokerage offices across America.
1991 he rejoined Edward S. Gordon Company, Inc which had evolved into Insignia ESG (today's CBRE). Next served as Managing
Director at Colliers ABR, Inc. that was subsequently acquired by Cushman & Wakefield. Founded NYC Realty Advisors,
Over the span of his career, Mr. Birnbaum represented such notable clients
as Arent Fox, Bank of America, Broadcort Capital, Carret & Company, LLC., 500 Park Avenue Associates, The Fuji Bank,
Ltd., Frank Russell Trust Company, General Telephone & Electronics, International Paper Company, KLM Royal Dutch Airlines,
Kidder Peabody, Mabon Securities, Merrill Lynch, National Securities Corporation, New York Life Insurance Company, Paul
Hastings Janofsky & Walker, Reebok International, Ltd., St. David’s School, SONY Corporation of America, Solow Development
Corporation, 3M and Venable LLP.
Mr. Birnbaum has bought, sold, financed, leased
and managed a variety of small properties for his own account.