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John J. DeBoy

Of Counsel

Washington +1 202 662 5156

  • About
  • Representative Matters
  • Credentials
  • About

    John J. DeBoy's practice focuses on high-stakes civil litigation, with particular emphases on product liability matters, mass tort defense, and commercial disputes. John’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. John’s clients span a wide range of industries, including pharmaceuticals, medical devices, automotive, and consumer products.

    John maintains an active pro bono practice that includes civil litigation, representation of prisoners in parole hearings, and representation of criminal defendants, including in capital cases.

    Prior to pursuing a legal career, John worked for several years as a management consultant and engagement manager for Deloitte Consulting LLP. During his time at Deloitte, John managed large-scale financial systems implementations, information technology strategy assessments, and business process optimization projects for clients in the consumer business, insurance, banking, and aerospace and defense industries.

    Areas of Expertise

  • Practices and Industries
  • Representative Matters
    • 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.

    Areas of Expertise

  • Credentials
    Education
    • Georgetown University Law Center, J.D., 2010
        • magna cum laude
        • Order of the Coif
        • The Georgetown Law Journal, Notes Editor
    • The University of Chicago Booth School of Business, M.B.A., 2003
        • with honors
        • Beta Gamma Sigma
    • University of Notre Dame, B.A., 1997
        • summa cum laude
        • Phi Beta Kappa
    Bar Admissions
    • District of Columbia
    • Maryland
    Judicial Clerkship
    • Hon. Peter J. Messitte, U.S. District Court, District of Maryland, 2010 - 2011
    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)

    Areas of Expertise

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