Jayne Conroy

With a legal career spanning more than three decades, Jayne has earned a superb national reputation as an elite trial lawyer, skilled strategist and decisive negotiator. She has consistently helped secure billions of dollars in verdicts and settlements for thousands of individuals, families and communities in numerous courtrooms nationwide.

“We are a threat to defendants because we are everywhere,” Jayne said while talking about the depth of experience in her department. “They know they have to deal with us, and we are prepared to try cases.”

Jayne focuses her practice on helping plaintiffs exclusively in mass torts, class actions, product liability, pharmaceutical and sexual abuse litigation. She serves or has served on dozens of court-appointed leadership committees in complex legal actions of national scope. These complex mass tort cases, called multidistrict litigations or MDLs, involve thousands of cases originating from state courts around the country and consolidated before a single federal judge.

Jayne’s most recent MDL appointments include the Plaintiffs’ Steering Committee Leadership in the In re: Social Media Adolescent Addiction/Personal Injury Products Liability Litigation, which alleges social media platforms encourage addictive behavior in adolescents, and the Plaintiff’s Steering Committee for the multidistrict litigation against McKinsey & Company in the In re McKinsey & Co Inc National Prescription Opiate Consultant Litigation, Judicial Panel on Multidistrict Litigation, which alleges McKinsey knowingly engineered marketing tactics that caused an avalanche of opioid addiction.

Other high-profile appointments include serving:

  • As a co-lead of the sprawling National Prescription Opiate Multidistrict Litigation (MDL) before Judge Polster in the Northern District of Ohio
  • As lead counsel in the NY state bellwether trial alongside Nassau County and the Attorney General of NY, against the entire opioid industry and resulting in over $1.7B in settlements and a plaintiff’s verdict against a manufacturer and a distributor
  • On the lead trial team that secured over $325 million in settlements for two Ohio counties related to the first bellwether trial in the ongoing opioid MDL
  • On the lead trial team that secured three consecutive bellwether 9-figure verdicts on behalf of patients injured by Johnson & Johnson/DePuy’s Pinnacle metal-on-metal hip replacement
  • On leadership in the Volkswagen emission scandal MDL
  • As legal representative of several thousand victims and families impacted by the 9/11 terrorist attacks
  • As the co-chair of the Environmental Testing Committee for the Deepwater Horizon oil disaster MDL
  • In individual cases against a variety of religious, educational and civic organizations for hundreds of sex abuse victims.

“Terrible things have happened to my clients that I can’t change, but what I can do is try to get them the justice they deserve,” Jayne said. “We are the best at doing that.”

The results Jayne has helped secure for her clients underscore the quality of her legal work. Her vast experience orchestrating large and multifaceted multidistrict litigations has resulted in multiple, significant settlements for her clients and thousands of others nationwide.

Bar and Court Admissions:

  • Massachusetts, 1985
  • U.S. District Court, District of Massachusetts, 1986
  • U.S. Court of Appeals, First Circuit, 1986
  • U.S. District Court, District of Columbia, 1997
  • New York, 1996
  • U.S. District Court, Southern and Eastern Districts of New York, 1996
  • U.S. District Court, District of Columbia and U.S. Court of Federal Claims, 2003
  • U.S. District Court, Southern District of Illinois, 2004


  • Dartmouth College (B.A., 1980)
  • New England School of Law (J.D., 1985). Editor, New England Journal on Criminal & Civil Confinement, 1984-85

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