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Thomas A. Warns

Fax +1.212.536.3901
Thomas Warns is a litigation associate in the firm’s New York office. His practice focuses on complex commercial litigation, including high-profile antitrust matters, in both state and federal court. Mr. Warns also handles appellate work and matters pending in international arbitration.

As a key aspect of his litigation practice, Mr. Warns has significant experience with all phases of discovery, including electronic discovery and other electronically stored information, document collection, review, and production, taking and defending depositions, and drafting dispositive pre-trial motions.

Mr. Warns also maintains an active pro bono practice and has represented charter schools in litigation against a government agency, as well as indigent individuals in family and immigration court.

Professional Background

Prior to joining the firm, Mr. Warns was a summer associate in the firm’s New York office in 2014. In addition, he was a legal intern for the office of the District Attorney of Nassau County in 2013, and he was a judicial intern for the Honorable Rudolph E. Greco of the Queens County Civil Court in 2011.


  • Flora S. and Jacob L. Newman Prize, 2015

Professional/Civic Activities

  • Member, Thomas M. Brennan Scholarship Committee

Additional Information

  • Monthly submissions on U.S. antitrust law developments for the European Competition Law Review.
  • Represents a ski gate manufacturer in defense of claims for monopolization and conspiracy to restrain trade, including appeal to Second Circuit.
  • Represented an aftermarket automotive parts distributor in an investigation by the Federal Trade Commission into a proposed merger.
  • Represents a mortgage lender in federal litigation involving breach of contract claims.
  • Represents a multinational fertilizer conglomerate before arbitral tribunal in breach of contract action.
  • Represents an international corporation in appeal of various contractual claims.
  • Represented noteholder in commercial mortgage foreclosure action.
  • Represented a shareholder representative in a breach of contract action related to a pharmaceutical merger.
  • Represented a pharmaceutical manufacturer in defense of fiduciary claims arising out of a corporate financing.
  • Active in various pro bono matters, including the representation of a charter school in an Article 78 proceeding, the representation of individuals in child custody, visitation, and divorce proceedings, and of a capital defendant in a state habeas corpus proceeding.