Daniel J. Marran




Dan is a litigator who has represented clients across a broad range of industries in complex litigation. He has defended against claims brought under state and federal antitrust laws, the Fair Credit Reporting Act, Massachusetts’ Chapter 93A, and state product liability laws, among other statutes.

Dan has experience in all phases of litigation, from pre-suit mediation through trial.  His experience includes class action lawsuits, commercial arbitration, multidistrict litigation, and parallel civil and criminal proceedings.

Prior to joining Partridge Snow & Hahn, Dan was an Associate in the Business & Tort Litigation practice group at Jones Day in Washington, D.C.

Practice Areas

Litigation & Disputes


Georgetown University Law Center, J.D., cum laude

University of Rhode Island, B.A., summa cum laude

Bar Memberships


Rhode Island

District of Columbia

U.S. Federal District Court, Massachusetts

U.S. Federal District Court, Rhode Island

Representative Matters

  • Represented pharmaceutical client in connection with multi-district antitrust litigation regarding alleged “product hop.”
  • Represented multinational client in connection with investigation into alleged violations of Foreign Corrupt Practices Act.
  • Represented manufacturer in licensing dispute involving breach of contract and Lanham Act claims.
  • Represented client in cases involving alleged violation of Fair Credit Reporting Act.
  • Represented multinational client in connection with internal investigations into employee immigration matters.
  • Represented property developer defending against breach of contract and Chapter 93A claims.
  • Represented minority shareholder of Massachusetts closely held corporation in “freeze-out” litigation.
  • Represented pro bono client facing eviction in D.C. Landlord Tenant Court litigation.

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