Jennifer Aronoff - McDermott Will & Emery


Jennifer (Jen) Aronoff focuses her practice on civil and criminal government enforcement actions, internal investigations, and complex commercial litigation. A former journalist, Jen uses her experience at gathering and deploying facts to help tell clients’ stories, and she has helped clients succeed at both the trial and appellate levels through clear and persuasive written and oral advocacy and keen legal analysis. Jen is also versed in advising clients on compliance questions.

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  • Represented a biotechnology company in qui tam suits in federal district court and on appeal; Jen was the lead drafter of briefs in two federal circuit courts that resulted in affirmance of the trial court’s dismissal
  • Represented ERISA trustee in two federal appeals involving breach of duty claims. Jen drafted briefs and other court documents that explained the complex procedural and substantive grounds supporting affirmance of the trial court’s judgment for the trustee. In both cases, the Court of Appeals affirmed and the US Supreme Court denied certiorari
  • Represented an American manufacturer in a breach of contract arbitration, winning a full defense award; Jen led the damages portion of the case and examined the damages expert at the arbitration
  • Successfully defended a pharmacist charged with racketeering, mail fraud, and Food, Drug and Cosmetic Act charges; following a two-month trial, the client was acquitted of all charges. Jen also drafted the key evidentiary motion in the case, which resulted in the exclusion of exceptionally prejudicial evidence


The Best Lawyers in America, “Ones to Watch in Commercial Litigation and Criminal Defense: White-Collar, 2023


Northwestern University School of Law, JD, magna cum laude, Order of the Coif, 2013
Northwestern University, BS, summa cum laude, 2004


Courts/ Agencies
US Court of Appeals for the Second Circuit
US Court of Appeals for the Third Circuit
US Court of Appeals for the Sixth Circuit
US Court of Appeals for the Seventh Circuit
US Court of Appeals for the Federal Circuit
US District Court for the Northern District of Illinois