HomeNYC Office Leasing ServicesThomas Birnbaum, PresidentRepresentative TransactionsTenant Representation ProcessAdvisory Letters - The Tenant Representative ViewpointProperties for LeaseSublease OpportunitiesNewsContact NYCRA


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 personnel.

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.

In 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.

Education & Affiliations

Tabor Academy    Class of  1962

Hobart College     Class of  1966

NYU School of Commerce   1967

The Real Estate Board of New York, Inc. since 1972

The Young Men’s / Women’s Real Estate Association of New York, Inc since 1976
New York State Department of State licensed real estate broker 
Appointed 2014 by Supreme Court, Appellate Division, First Department as a member of the Departmental Disciplinary Committee. Reappointed 2016 to the now renamed Attorney Grievance Committee.