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James Vant is a litigation, trial, and appellate attorney with experience representing a broad spectrum of U.S. and international clients in connection with domestic and international proceedings in federal and state courts throughout the United States, including claims involving securities, trade secrets, employment, fraud, breach of contract, fiduciary duty, and bankruptcy law. James also represents clients in a wide variety of non-litigation business transactions, disputes, and internal corporate investigations concerning U.S. and international law. In addition, he counsels clients on risk mitigation strategies, information management and records retention, and data privacy and protection as well as advises clients on an array of issues relating to electronically stored information (ESI) and eDiscovery, James also represents companies responding to civil investigative demands under the federal False Claims Act and state laws and enforcement actions brought by the United States Department of Justice, state attorneys general, and other federal and state regulatory agencies.


  • Complex business litigation and disputes
  • Federal and state government investigations and civil actions
  • Unfair and deceptive business practice claims
  • Class action defense
  • Fiduciary duty
  • Internal corporate investigations
  • Partnership disputes
  • Trade secret and non-competition disputes
  • Bankruptcy litigation
  • Employment law (including the Fair Labor Standards Act)



  • Represented companies and individuals in federal regulatory investigations by the UnitedStates Department of Justice, the United States Securities and Exchange Commission, and other federal regulatory agencies.
  • Represented companies and individuals in state regulatory investigations by the Massachusetts Office of the Attorney General, other states attorneys general, and other state regulatory agencies.
  • Represented companies in defense of unfair and deceptive business practice claims.
  • Represented special litigation committee of board of directors of public company in investigation of historical stock-option granting practices and responses to stockholder demands, and federal and state court derivative litigation asserting state law claims for breach of fiduciary duty and federal securities claims.
  • Represented companies in litigation involving the False Claims Act.
  • Represented companies in class action litigation involving the Fair Labor Standards Act.
  • Represented bio-medical broker in litigation concerning domestic sales transaction.
  • Represented national retailer in state and federal wage and hour class action.
  • Represented national retailer in litigation concerning the misappropriation of trade secrets and violation of non-disclosure and non-competition agreements.
  • Counseled companies regarding information management and records retention, data privacy and protection, and e-discovery.
  • Represented financial institutionsand gaming companies in complex commercial disputes.
  • Prosecutor, Quincy District Court (pro bono), Rule 3:03
  • Public Defender, Boston Municipal Court (pro bono), Rule 3:03


  • Listed, Super Lawyers magazine, Massachusetts Super Lawyers, "Rising Stars," 2013

  • Member, American Bar Association
  • Member, Massachusetts Bar Association
  • Member, New York State Bar Association


  • J.D., cum laude, Boston University School of Law
  • B.A., cum laude, Rutgers University
  • Massachusetts
  • New York
  • U.S. Court of Appeals for the First Circuit
  • U.S. Court of Appeals for the Second Circuit
  • U.S. District Court for the District of Massachusetts
  • U.S. District Court for the Southern District of New York