John W. Cannavino

John W. Cannavino

Cummings & Lockwood LLC

Recognized since 2013

Stamford, Connecticut

Practice Areas

Commercial Litigation

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John W. Cannavino is a Principal in Cummings & Lockwood's Litigation Group and is based in the Stamford office. He brings over 40 years' of broad-based experience to his litigation and trial practice, representing both plaintiffs and defendants. He has extensive experience in complex commercial litigation, including securities litigation; litigation between investors and hedge fund managers; insurance coverage disputes; corporate, partnership, and limited liability company disputes and dissolutions; contract disputes; environmental litigation; real estate litigation, including lease, restrictive covenant, and easement disputes; real property tax appeals; Connecticut State tax appeals, including domicile litigation; trustee and fiduciary litigation, including litigation regarding self-settled asset protection trusts; and restrictive covenant and trade secrets litigation. He has tried numerous cases in state and federal courts, including jury trials, as well as arbitrations. He has also acted as co-counsel in a number of matrimonial cases, providing assistance on complex trust and commercial issues.


  • Six Landmark Square
    Stamford, CT 06901


  • Syracuse University , J.D., graduated 1977
  • Binghamton University, B.A., graduated 1973

Bar Admissions

  • Connecticut, 1977


  • Connecticut Bar Foundation - Life Fellow
  • Fairfield County Bar Association - Member
  • The Raymond E. Baldwin American Inn of Court - Member
  • Stamford Downtown Special Services District - Board of Commissioners, Member

Court Admissions

  • United States Tax Court, 2008
  • United States District Court, District of Connecticut
  • United States District Court, Southern District of New York
  • United States District Court, Eastern District of New York

Cummings & Lockwood LLC
Headquarters: Stamford, Connecticut

33 The Best Lawyers in America® awards

6 Best Lawyers: Ones to Watch in America awards

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Full Firm Profile

Recognized in The Best Lawyers in America® 2022 for work in:

  • Commercial Litigation

Special Focus

  • COVID-19


  • Connecticut and New England Super Lawyers, 2006 - Present
  • Martindale-Hubbell, AV Rated

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