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John J. DeBoy's practice focuses on high-stakes civil litigation, with particular emphases on product liability matters, mass tort defense, and commercial disputes. Mr. DeBoy’s experience includes trial and appellate litigation in state and federal courts throughout the country, and he also advises clients concerning litigation risk in transactional matters involving potential mergers and acquisitions. Mr. DeBoy’s clients span a wide range of industries, including pharmaceuticals, medical devices, automotive, and consumer products.

  • Represents Hoffmann-La Roche Inc. in federal and state product liability litigation involving Accutane.
  • Represents Genentech in product liability litigation involving Avastin and Lucentis.
  • Represents Boehringer Ingelheim in product liability litigation involving Pradaxa.
  • Represents a leading automotive parts supplier in mass tort, class action, and consumer protection litigation involving airbag products.
  • Represents a leading consumer products manufacturer in state-court product liability litigation.
  • Successfully represented Eli Lilly as a member of a trial team that secured multiple defense verdicts in litigation involving Cymbalta.
  • Successfully briefed and argued motions for summary judgment on the basis of adequacy and proximate cause in a mass tort pharmaceutical litigation in New Jersey state court.
  • Successfully briefed and argued a motion to dismiss in a pharmaceutical product liability action in Texas state court, securing judgment for the defendant.
  • Drafted the winning appellate briefs in successful appeals of product liability judgments against a leading pharmaceutical manufacturer in New Jersey state court.
  • Advises life sciences companies on litigation risks associated with potential mergers and acquisitions.
  • Represented the former shareholders of a defense contractor in federal court litigation involving a merger transaction.

Pro Bono

  • Represents a capital defendant in post-conviction proceedings in Alabama state court.
  • Represents criminal defendants in matters pending in Maryland state court.
  • Successfully represented two former federal prisoners in proceedings before the United States Parole Commission.
  • Successfully represented a defendant in a debt collection matter in Maryland state court, securing vacatur of a foreign judgment.

Previous Experience

  • Deloitte Consulting LLP, Management Consultant (1997-2006)