Jerome C. Mohsen

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Jerome C. Mohsen

Jerome is a litigator with substantial experience in insurance law, shareholder disputes, municipal law, administrative law, consumer actions, health law, bid protests, personal injury, and contract law. Jerome has represented local, national, and international firms, as well as municipalities big and small, in state and federal trial courts. He has practiced in the Wisconsin Court of Appeals and argued in front of the U.S. Court of Appeals for the Seventh Circuit. Before joining Gass Turek, Jerome practiced at Quarles & Brady in the litigation and dispute resolution practice group.

Jerome is bilingual French-English and fluent in Spanish. He has assisted clients with French-language disputes in Québec and France, non-compete agreements in France, French-language commercial agreements with governmental entities in Canada, and service agreements in French-speaking African countries. He has also monitored proceedings in French courts on behalf of American clients.

Committed to pro bono service, Jerome has represented local and national nonprofit organizations, renters at risk of eviction, and citizens seeking to enforce their constitutional rights. He has received numerous awards for his pro bono work in federal and state courts.

  • Rising Star, Super Lawyers, 2022
  • Member, Wisconsin Pro Bono Honor Society
  • J.D., Marquette University Law School, magna cum laude, 2017; senior comment editor Marquette University Law Review; CALI Awards (highest grade) in Constitutional Law, Civil Pretrial Practice, Law & Public Health, American Legal History, Deposition Practice, and Appellate Writing & Advocacy
  • B.A., Carroll University, magna cum laude, 2002
  • Maîtrise, Université Bordeaux Montaigne, with honors, 2000
  • License, Université Bordeaux Montaigne, 1999
  • D.E.U.G., Université Bordeaux Montaigne, 1998


  • Wisconsin
  • U.S. District Court, Northern District of Illinois
  • U.S. District Court, Eastern District of Wisconsin
  • U.S. District Court, Western District of Wisconsin
  • U.S. Court of Appeals for the 2nd Circuit
  • Member, Wisconsin State Bar Association
  • Member, Milwaukee Bar Association
  • Member, Eastern District of Wisconsin Bar Association
  • Associate, Fairchild Inn of Court
  • Attorney, Services, Consulate General of France in Chicago
  • United States Supreme Court: Only Statutory Deadlines Are Jurisdictional, Appellate Lawyers Association, 2017
  • The American Justice System, Presentation, University of Wisconsin-Milwaukee, 2020
  • First-chaired arbitration trial representing a national bank in breach of contract dispute and obtained full relief (American Arbitration Association)
  • Defeated summary judgment on breach of contract and related claims (United States District Court for the Eastern District of Wisconsin)
  • Prevailed on motion to dismiss claims against clients for not being proper defendants (Milwaukee Circuit Court)
  • Obtained reversal of a trial court’s dismissal of client’s constitutional right lawsuit (U.S. Court of Appeals for the Seventh Circuit)
  • Represented tenants with the Eviction Defense Project, Legal Action of Wisconsin (avoided eviction every time by either prevailing in court or negotiating a settlement)
  • Represented prisoner claiming violation of his constitutional rights in the U.S. District Court for the Eastern District of Wisconsin (matter settled)
  • Represented prisoner in the U.S. Court of Appeals for the Seventh Circuit (court reversed summary judgment against prisoner and entered partial summary judgment in his favor)
  • Represented nonprofit organizations in real estate and contractual disputes (obtained settlement every time)
  • Represented refugee families separated at the border (filed administrative claims)
  • Represented driver arguing her search was unconstitutional in the Wisconsin Court of Appeals (pending)
  • Represented wrongly evicted tenant suing for damages (prevailed in court)

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