Dennis Greenstein

Seyfarth Shaw LLP

Mr. Dennis H. Greenstein is a real estate partner in the New York office of Seyfarth Shaw LLP. He focuses his practice on cooperative and condominium law and provides counsel to approximately 175 cooperatives and condominium buildings located in New York City. Prior to starting his practice, Mr. Greenstein served as a New York State Assistant Attorney General in the Real Estate Financing Bureau, Cooperative and Condominium Section.

Mr. Greenstein is currently on the Executive Committee of the Real Property Law Section of the New York State Bar Association and served as the co-chair of the Committee on Condominiums and Cooperatives of the section from 2006-2016.

He previously served as a member of the New York State Bar Association’s liaison committee with the Department of Law (Attorney General’s Office) on co-op and condo conversions. He is a frequent contributor to, and often quoted in, publications such asThe New York Times, addressing issues relating to cooperative and condominium law.

In addition, Mr. Greenstein has written articles for or lectured and conducted seminars and workshops on the subject of cooperatives and condominiums at the Real Estate Board of New York, CNYC, The Cooperator, HABITAT Magazine, New York University’s Continuing Education Program and the office of the Attorney General.


  • J.D., Suffolk University
  • B.A., American University


  • New York State Bar Association (Member, Real Property Law Section; Committee on Condominiums and Cooperatives; Co-Chair, Workout Subcommittee, 1993 – 1996, Co-Chair of the Committee on Condominiums and Cooperatives, 2007-2016)
  • Assistant Attorney General, State of New York, Real Estate Financing Bureau, Cooperative and Condominium Section (1973-1978)


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Seyfarth Shaw LLP can handle cases related to laws concerning Real Estate, Construction. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
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Seyfarth Shaw LLP
New York Times Bldg, 620 8th Ave, New York, NY 10018, USA
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