Barclay Damon
Barclay Damon


John Langan

Managing Partner

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Syracuse Office

Barclay Damon Tower
125 East Jefferson Street
Syracuse, New York 13202

As the firm’s managing partner, John has led Barclay Damon’s growth from a 50-attorney firm with three offices to become the largest law firm based in Upstate New York. Most recently, this involved successfully merging legacy firms Hiscock & Barclay and Damon & Morey and integrating the former firms of Gilberti Stinziano Heintz & Smith and Menter, Rudin & Trivelpiece into Barclay Damon. The firm’s strategic evolution has resulted in a seamless platform of offices in midsize, major-market, and smaller cities across the Northeastern United States and Toronto.

In his legal practice, John capitalizes on his experience as a former Wall Street project finance lawyer and trial lawyer at a leading New York firm. He serves a large roster of corporate and individual clients in disputes involving fraud, breach of contract, tort liability, and intellectual property exposure in both state and federal court.

Representative Experience

  • Served as lead counsel in a number of high-profile cases investigating and prosecuting fraud and employee theft for publicly traded and privately held companies, including a CFO embezzlement scheme for a public energy equipment manufacturer, multiple vendor and employee theft cases for a public utility, and controller defalcation of financial records for a large, privately held medical device manufacturer.
  • Served as secondary counsel in a New York City case involving a scheme by a group of employees to defraud their company during a leveraged buyout of a national publishing house.
  • Handled multiple matters pursuing civil claims and criminal referrals for premium theft and conversion by insurance agents on behalf of national insurance companies.
  • Handled numerous theft-of-trade-secret cases testing the validity and scope of restrictive covenants in business contracts, including representing a regional construction equipment supplier, a technology-based manufacturer of residual gas analyzers and particle detectors, and an energy marketing company.
  • Prevailed as lead counsel in a well-publicized breach-of-contract dispute between two major New York public utilities over operating rights to the Nine Mile Point Nuclear Station, Unit Two.
  • Obtained a permanent injunction on behalf of a New York State power authority against a real estate developer over easement rights related to a major transmission and distribution line.
  • Prosecuted a breach-of-contract claim on behalf of New York State over issues related to a gaming facility operator.
  • Prosecuted and defended numerous businesses related to Lanham Act claims, including defending an Indiana corporation engaged in the manufacture of Adirondack chairs against claims of trademark and trade dress infringement, prosecuting claims of trademark infringement for a foundation protecting the well-known Roycroft arts-and-crafts trade name and marks, representing a regional tanning-bed company in protection of its trade name, and representing a regional grocery store in the New York City area against misuse of its name and mark.
  • Represented a national entertainment company in prosecuting claims of copyright infringement related to the Batman film series.
  • Defended a prominent Upstate New York municipality in an Article 78 challenge to the issuance of a special permit for the siting and construction of an urgent-care hospital.
  • Represented majority and minority shareholders in corporate shareholder disputes in a wide range of industries, including construction, loan financing, insurance, and investment advising, and in a shareholder dispute involving New York City’s Bronx Terminal Market.
  • Successfully defended a British roofing-systems manufacturing company at trial against products liability claims before a South Carolina jury.

Practice Areas


  • St. John's University School of Law, J.D., 1987
  • Colgate University, B.A., 1984

Admitted To Practice

  • New York, 1988
  • U.S. Court of Appeals, 2nd Circuit
  • U.S. District Court, Northern District of New York
  • U.S. District Court, Western District of New York
  • U.S. District Court, Eastern District of New York
  • U.S. District Court, Southern District of New York

Memberships & Affiliations

  • New York State Bar Association, Insurance Committee Member
  • Northern District of New York Federal Court Bar Association, Judicially Appointed Organizing Member, Founding Trustee, and Former President
  • Onondaga County Bar Association, Member and Former Board of Directors Member
  • Merit Selection Panel for Appointment and Reappointment of US Magistrate Judge, Judicially Appointed Chair and Member

Civic Activities

  • Volunteer Lawyers Project of Onondaga County Family Law Clinic, Volunteer
  • Syracuse Say Yes to Education, Volunteer
  • Colgate University SophoMORE Connections Alumni Network, Volunteer
  • Colgate University “A Day in a Life” Program, Participant
  • Syracuse City Rescue Mission, Volunteer

Speaking & Publications

  • NYS Appellate Division Admissions Ceremony, “Disruptive Forces in the Legal Profession and Opportunities for New Market Entrants,” Keynote Speaker
  • Thomson Reuters 19th Annual Law Firm Leaders Pre-Conference Workshop, Panelist
  • Business & Commercial Litigation in Federal Courts, “The Expert Down the Hall”
  • Commercial Litigation CLE Series: The Client’s Perspective of Business Litigation, “Advice From the Experts: Successful Strategies for Winning Commercial Cases in New York State Courts”
  • Syracuse University College of Law, “Corporate Counsel & Litigation Management Course” Periodic Guest Speaker
  • New York Law Journal, “Barclay Damon: Am Law 500 Firms Fighting Hard to Regain Lost Market Share”
  • Of Counsel Legal Practice Management Report, Regular Contributor
  • Law360, “Why Midsize Firms Run the Gamut on Diversity”
  • Law360, “Creating Barclay Damon: Lessons From a Law Firm Merger”
  • Of Counsel, “Successful Partnering Between Inside and Outside Counsel”


  • Selected to Super Lawyers Upstate New York: Business Litigation, 2018
  • Selected to Super Lawyers Upstate New York: Commercial Litigation and Energy, 2008 and 2010-2017
  • Capital District Lawyers Helping Lawyers Committee and New York State Bar Association, Ray of Hope Award, October 2008
  • Martindale-Hubbell AV Peer Review Rated for Very High to Preeminent Ethical Standards and Legal Ability

Prior Experience

  • Hiscock & Barclay, LLP, Managing Partner
  • Hiscock & Barclay, LLP, Partner
  • Hiscock & Barclay, LLP, Associate
  • Whitman & Ransom, Associate
  • Hawkins Delafield & Wood, Associate
  • Hawkins Delafield & Wood, Summer Associate