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Contact Information

John Mascialino


200 Park Avenue
New York, New York 10166
United States
Web Site
Contact Email
Practice Areas
Administrative Law, Antitrust Litigation, General Litigation, Government Contracts, Government Relations
Languages spoken
New York

John Mascialino

John Mascialino

Greenberg Traurig, LLP is an international, full-service law firm with approximately 1800 attorneys serving clients from 34 offices in the United States, Latin America, Europe, the Middle East and Asia. In the U.S., the firm has more offices than any other among the Top 10 on The National Law Journal's 2012 NLJ 250.


John Mascialino

John L. Mascialino heads the New York Government Law Practice at Greenberg Traurig. He focuses his practice on government affairs, government contracts and related real estate matters and administrative law. John counsels private and publicly owned companies on state and local regulatory, legal and policy matters. He counsels clients on strategic objectives and provides advice on regulatory matters that will enhance their business opportunities in the city and state of New York.

John spent several years working in the Giuliani Administration, serving as First Deputy Commissioner of the Department of Citywide Administrative Services (DCAS), where he was responsible for all procurement of city equipment and supplies and in charge of many city real estate assets. Prior to that, John was Counsel/Deputy Chief of Staff for the Office of the Deputy Mayor for Operations, where he assisted in the supervision of many City operational agencies, was a mayoral appointee to the Franchise Concession Review Committee (FCRC), and also served as Deputy General Counsel of the Mayor's Legislative Affairs office where he lobbied the City Council to pass the Mayor's legislative agenda.

Areas of Concentration
  • Administrative law
  • Government relations
  • Government contracts
  • Procurement
  • Bid protests
  • Concessions and franchises
  • Housing/economic development
  • Legislative counsel  
  • Regulatory and lobby compliance issues
Significant Representations
  • Represent major consulting and software companies with technology procurements by various New York City and New York State governmental agencies and public authorities.
  • Represent major real estate developers in obtaining economic incentive packages from New York City and New York State, including, tax exempt financing and abatement programs.
  • Represent commercial and retail property owners with government leasing transactions
  • Represent major companies with existing government contracts including contract negotiations, bid protests and appeals before governmental agencies, contract registration and appropriations.
  • Represent transportation technology company with contracts in several cities in the United States including New York City and Philadelphia, specializing in the Taxi and Livery car industries.
Professional & Community Involvement
  • Member, Board of Directors, Easter Seals New York
  • Chairman, Board of Directors, Easter Seals New York, 2008-2010  
    • Vice Chairman, Board of Directors, 2006-2008 
    • Chair, NYC Regional Board, 2006-2008
  • Board Member, Easter Seals New Hampshire, 2008-2010 
  • Board Member, Grand Central Partnership, 2008-present 
  • Member, New York State Bar Association  
Awards & Recognition
  • Recipient, "2005 Easter Seals New York Board Leadership Award," Board of Directors, Easter Seals New York, November 2005
Previous Employment
  • First Deputy Commissioner, New York City Department of Citywide Administrative Services 2000-2001
  • Deputy Chief of Staff/Counsel, Office of the Deputy Mayor for Operations, 1998-2000
  • Deputy General Counsel, Mayor's Office of City Legislative Affairs, 1997-1998
  • Director of Legislative and Public Affairs, New York City Department of Employment, 1996-1997
Articles, Publications, & Lectures



  • Co-author, Navigating Government Procurement, Aspatore Publishing, Inside the Minds series, 2008
Associated News & Events

Media Coverage

03.12.12 Greenberg Traurig attorneys advise SBA in purchase of more towers (subscription)
03.08.12 New Deals: Paul Weiss, Greenberg Traurig Handle $1.1 Billion Cell Tower Acquisition (Subscription)
J.D., New York Law School, 1995
  • NYLS Alumni Mentor Association
B.A., History, St. Francis College, 1992
Admitted to Practice