John Hare at Marshall Dennehey, PC focuses on commercial disputes and advocacy within complex business litigation. He handles appeals in state and federal appellate courts, representing individuals, corporations, and insurers in many of Pennsylvania’s most high‑profile civil matters. As amicus curiae counsel, John has represented organizations across multiple industries, including national business associations, state‑level industry groups, and leading medical and healthcare organizations.
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215-575-2609
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Accolades

Philadelphia Elite

Profile

Work Department
Professional Liability Department
Position

Chair, Appellate Advocacy & Post-Trial Practice Group

Career

John is chair of Marshall Dennehey’s Appellate Advocacy and Post-Trial Practice Group and a member of the firm's Executive Committee. He has litigated more than 500 appeals in state and federal appellate courts. As litigation counsel, John has represented individuals, insurers, and corporations in some of the most high-profile litigation in recent Pennsylvania history, including dozens of cases with verdicts and settlements in excess of $10 million.

John serves by appointment of the Supreme Court of Pennsylvania as the co-chair of the Court’s Historical Commission and on the Commission on Judicial Independence, a group of state and federal judges, academics, and attorneys who work to promote public awareness of the importance of a strong, independent judiciary in a free society. He also spent six years on the Supreme Court’s Civil Procedural Rules Committee, the last two years as chair, and served on the Board of Governors of the Bar Association of the Third Federal Circuit and as co-chair of the Amicus Curiae Committee of the Pennsylvania Defense Institute. He also serves on the advisory board of Ohlbaum on the Pennsylvania Rules of Evidence (Lexis-Nexis) and regularly speaks at appellate court events and continuing legal education seminars.

Memberships
American Academy of Appellate Lawyers, Fellow, 2016 Bar Association for the Third Federal Circuit International Association of Defense Counsel, 2018 Pennsylvania Bar Association Pennsylvania Defense Institute, 2008 Pennsylvania Supreme Court, Civil Procedural Rules Committee, 2015-2021; Chair, 2019-2021 Pennsylvania Supreme Court, Historical Commission, Co-Chair, 2023 Pennsylvania Supreme Court, Commission on Judicial Independence, 2024
Education

Princeton University
Ph.D. Coursework
1999

University of California, Berkeley
M.A.
1998

Duquesne University School of Law
J.D.
1993

Indiana University of Pennsylvania
B.A.
1990

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Key clients

  • AmerisourceBergen Bayer U.S. LLC Campbell Trial Lawyers Cardinal Health, Inc. Cassatt RRG Holding Co. Chubb Combe, Inc. FedEx Gordon Rees Skully Mansukhani Janssen Pharmaceuticals Johnson & Johnson McKesson Corp. a/k/a Cencora, Inc. MedPro Group Rothman Orthopaedic Institute Selective Insurance Company of America Travelers Zurich North America

Work highlights

Represented Vita Healthcare Group and Brinton Manor Center SNF LLC in reducing a $19 million verdict by $10 million. The ruling clarified that nursing home management companies do not share the operator’s non-delegable duty to patients, limiting their liability and restricting plaintiffs’ ability to claim joint and several liability in such cases.
Successfully appealed a $5.6 million verdict, convincing the Pennsylvania Supreme Court to uphold statutory employer immunity.
Represented Travelers Insurance in a trucking accident case with a $26.2 million verdict, the Appellate Department was retained by Travelers to assist with post-trial motions and appeal.