Daniel J. Marran




Dan is a litigator who has represented clients across a broad range of industries in complex litigation and investigations. He has helped clients defend against claims brought under state and federal antitrust laws, the Fair Credit Reporting Act, federal securities law, and state product liability laws, among other statutes. His experience includes class action lawsuits, multidistrict litigation, and parallel civil and criminal proceedings. Dan has also worked closely with expert witnesses in a number of substantive areas, including damages, FDA regulatory processes, and consumer preference studies.

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 client in cases involving alleged violation of Fair Credit Reporting Act.
  • Represented multinational client in connection with internal investigations into employee immigration matters.
  • Represented pro bono client facing eviction in D.C. Landlord Tenant Court litigation.
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