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Gregg B. Cosimi

Fax +1.617.261.3175

Gregg Cosimi is a transactional real estate attorney representing clients throughout the United States in acquisitions and dispositions, zoning and land use, leasing and financing, partnership and entity formation, and construction related matters.  Gregg’s experience includes representation of regional and national owners, developers, investors, lenders and tenants in a broad variety of commercial real estate transactions.  These include the development of a premier waterfront hotel and condominium, the construction of a downtown Boston office tower, the acquisition and development of multiple office, research and industrial locations, the financing of residential, hotel and commercial projects, and the leasing of hundreds of office, retail, warehouse and industrial locations.  Gregg also advises clients with respect to general business and corporate issues, including out-of-court restructurings.

Mr. Cosimi is a LEED Accredited Professional (LEED-AP), a distinction he earned through the Green Building Certification Institute. As a LEED-AP, he has demonstrated a thorough understanding of green building practices and principles, as well as the LEED Rating System.


  • • Selected by his peers for inclusion in the 2013, 2014, and 2015 editions of The Best Lawyers in America in the area of real estate law.
  • Named a "Massachusetts Super Lawyers' Rising Star" in real estate in the May 2005, 2006, 2007 and 2008 issues of Boston Magazine

Professional/Civic Activities

  • Served as chair of the Leasing Committee of the Boston Bar Association
  • Member, the National Association of Industrial and Office Properties (NAIOP)
  • Member, the Real Estate Finance Association (REFA)
  • Member, American Bar Association
  • Member, Boston Bar Association
  • Served as a commercial intern for the United States Embassy, Department of Commerce in Beijing, China
  • Served as a volunteer instructor for Citizens Schools 8th Grade Academy Writing Program