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David "Rooney" J. Gilmartin Jr. co-chair of the Long Island Land Use Practice, focuses his practice on land use, zoning, and real estate matters as well as related litigation. David previously served in a variety of government roles, including as Village Attorney for the Village of Sag Harbor and as Town Attorney for the town of Southampton. In his government roles, he regularly represented various municipal boards. David currently represents developers as well as individuals before all land use boards in Eastern Suffolk County.


Esperienze Professionali - Attività Accademiche

  • Represents Georgica Green Ventures, the largest affordable housing developer on Long Island.
  • Represents the Beechwood Organization in connection with two large condominium developments in the Village of Southampton.
  • Represented the developer for a well-known hotel/restaurant in Bridgehampton, Topping Rose House.°
  • Obtained the dismissal of claims brought against a Fortune 500 Company related to its temporary storage of motor vehicles damaged by Hurricane Sandy on farmland regulated by Suffolk County.°
  • Represented a global developer in the redevelopment of an oceanfront beach club in Westhampton Beach.°

°The above representations were handled by Mr. Gilmartin prior to his joining Greenberg Traurig, LLP.

  • Village Attorney, Village of Sag Harbor, 2016-2018
  • Town of Southampton, 1996-2003
    • Deputy Town Attorney, 1996-1999
    • Town Attorney, 2000-2003
    • Special Assistant District Attorney, 1996-2003

Riconoscimenti e Premi

  • Member, Suffolk County Bar Association, 1996-Present
  • Member, New York State Bar Association, 1996-Present
  • Vice Chair, Board of Directors, Little Flower Children and Family Services of New York
  • South Fork Breast Health Coalition
    • Trustee of the Board
    • Board Member
  • Trustee, Southampton Hospital, 2003-2007


  • Laurea magistrale in Giurisprudenza, Fordham University School of Law
  • B.S., St. John Fisher College
  • New York
  • U.S. District Court for the Eastern District of New York