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John T. Duffey

Partner

3300 Wells Fargo Center, 90 South Seventh Street, Minneapolis, MN 55402-4140

Bar Admissions

Minnesota
U.S. District Court
  • Minnesota
  • E.D. Michigan

Leadership & Community

  • Minnesota State Bar Association
  • Hennepin County Bar Association

Overview

John Duffey represents clients in complex commercial litigation matters, including business torts and contract disputes, with a particular emphasis on noncompete and trade secret litigation. John helps clients navigate all stages of the litigation process and has significant experience representing large and small businesses in all forums: federal and state courts, arbitrations, and mediations.

John earned his bachelor's degree in history from Duke University in Durham, North Carolina. He earned his law degree, cum laude, from the University of Michigan Law School in Ann Arbor, Michigan. During law school, he served as editor-in chief of the University of Michigan Journal of Law Reform and was the recipient of the Jeffrey S. Lehman Legal Practice Award and the Sarah Honigman Memorial Award.

Experience

  • Obtained multimillion-dollar judgment for regional accounting firm in noncompete dispute with former partner.
  • Secured TROs and preliminary injunctions for medical device manufacturer in actions to enforce noncompetes and other restrictive covenants.
  • Represented dental practice management company with respect to breach of contract and breach of fiduciary duty claims brought in multiple states.
  • Managed e-discovery and related issues in numerous federal and state court actions.
February 21, 2019

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