Matt takes a pragmatic approach to resolving high-stakes litigation that has earned him recognition from his peers and brings value to his clients.

Matt specializes in handling a client’s most complex matters. He currently serves as a court-appointed member of the Steering Committee prosecuting multidistrict litigation on behalf of purchasers forced to overpay for life-saving EpiPens and he has been a core member of the legal team on some of the firm’s highest-profile matters. Most notably, these matters included recouping $4 billion for American Express from Visa and MasterCard—the largest ever settlement for a single antitrust plaintiff—and representing a nationwide consumer class against Volkswagen based on the installation of an emissions testing defeat device, which resulted in a partial settlement valued at approximately $15 billion.

In addition to these litigations, Matt has counseled his clients in a wide variety of subject matters, including antitrust, contract, corporate governance, class action, entertainment, land use/real estate, intellectual property, securities, and estate litigation.

Matt’s writing on the compact clause of the Constitution was published in the Yale Law & Policy Review and has been cited as authority by multiple courts. In addition to constitutional law, Matt’s academic interests include political science, mediation, and land use. He also sits on a local Zoning Board of Appeals.

Matt’s representative engagements include:

  • Representing national RICO and state antitrust classes of purchasers against maker and distributor of EpiPen
  • Prosecuting and settling a nationwide class action against Volkswagen for its installation of an emissions testing defeat device, resulting in a settlement valued at more than $15 billion
  • Representing American Express in obtaining $4 billion of relief for the settlement of antitrust claims against Visa and MasterCard
  • Successfully defending American Express in antitrust actions brought by the U.S. Department of Justice, state attorneys general, and certain merchants regarding American Express's non-discrimination provisions
  • Defeating a motion for temporary restraining order/preliminary injunction that sought to undue the proper dissolution of a company and funding for a $200 million lawsuit
  • Winning appeal regarding the right of Cayman shareholders to bring derivative actions in New York courts
  • Winning-and successfully defending on appeal-an injunction requiring the dismantling of an illegal concrete plant, and a finding of contempt for failure to comply with that injunction
  • Serving on trial and appellate teams representing a production company in connection with successfully moving its reality television show to a new television network
  • Successfully representing a sovereign wealth fund in opt-out litigation from a securities class action
  • Preserving objections to estate accounting and defeating partial motion for summary judgment in a dispute over an estate valued at more than $600 million
  • Defending Man Group against a securities class action that was dismissed on Man Group's motion to dismiss
  • Winning a plaintiff's motion for summary judgment that awarded the firm's client a 40 percent membership interest in a leading hedge fund-of-funds along with damages in excess of $20 million

Bridge Over Troubled Waters: The Application of State Law to Compact ClauseEntities, 23 Yale L. & Pol’y Rev. 163 (2005)

Note, Groh v. Ramirez, The Warrant Requirement, and Qualified Immunity, 6 U. Pa. J. Const. L. 1179 (2004).

  • University of Pennsylvania Law School, J.D.; Articles Editor, University of Pennsylvania Journal of Constitutional Law
  • University of Pennsylvania, M.G.A., Government Administration; Project Director, Fels Voting Index
  • Villanova University, B.A., Political Science; Commencement Speaker; Truman Scholar Nominee


  • New York
  • Connecticut
  • U.S. Court of Appeals: Second Circuit
  • U.S. District Court: Southern District of New York
  • U.S. District Court: Eastern District of New York
  • U.S. District Court: District of Connecticut
  • U.S. District Court: District of Colorado
  • U.S. District Court: Eastern District of Michigan