LAWYER PROFILE

Diane Welsh

USA 2026

JAMS

Ranked in 2 practice areas

Litigation: Mediators

Pennsylvania

4 years ranked

Mediators

USA - Nationwide

6 years ranked

About

Provided by JAMS

USA

Career

The Hon. Diane Welsh (Ret.) is highly respected for resolving disputes with sensitivity, patience and persistence. Over the past 27 years, as a JAMS neutral and U.S. Magistrate Judge, she’s resolved over 5,000 matters covering virtually every type of complex dispute. Extraordinarily skilled in resolving high-stakes multiparty commercial disputes, mass torts, class actions, data breach, insurance coverage, employment, sexual abuse and catastrophic personal injury cases, she has also presided over many aspects of multidistrict litigations while on the bench and as a special master.

Past work includes global settlement of state and federal products liability proceedings, and numerous other high profile cases. These include acting as Special Master of Amtrak Train’s Derailment Settlement Program and as the mediator for global settlements of the state and federal products liability proceedings brought against Stryker Orthopedics, Wright Medical, Bayer Essure and other medical device and pharmaceutical companies.

Professional Memberships

• Federal Magistrate Judges Association; Third Circuit Director, 1999-2004

• The Forum of Executive Women

• American Inns of Court; President, Temple American Inn of Court, 2002-2003

• National Association of Woman Judges, Federal Bar Association, Montgomery Bar Association, Philadelphia Bar Association,

• Bucks County Bar Association, Pennsylvania Bar Association, and other professional organizations

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Litigation: Mediators - Pennsylvania

Star Individuals

Individual Editorial

Diane Welsh of JAMS comes highly recommended in the market for her impressive depth and breadth of expertise as a mediator. She is particularly skilled in employment, personal injury and mass tort disputes.

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Mediators - USA - Nationwide

Band 1

Individual Editorial

Philadelphia-based Diane Welsh specializes in mediating complex multiparty disputes spanning commercial, employment, mass torts and insurance.

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Strengths

Provided by Chambers

Diane Welsh is always well prepared and has great credibility in persuading the parties and their attorneys to find a way to compromise so a case can be resolved.
Litigation: MediatorsChambers Guide to the USA
Diane Welsh's great experience, skill and judgment enable her to offer practical insights and guidance to arrive at creative ways to settle cases, even when initially the parties seem far apart.
Litigation: MediatorsChambers Guide to the USA
Diane Welsh is skilled at getting matters resolved. She is smart, pragmatic, no-nonsense and she works hard to get to a resolution.
Litigation: MediatorsChambers Guide to the USA
Judge Welsh is an effective mediator who is good at pushing the parties to a deal.
MediatorsChambers Guide to the USA
Diane Welsh spends a great deal of time learning the case. She comes up with prescient questions, identifies challenging issues and creates creative strategies to allow parties to get to negotiation.
MediatorsChambers Guide to the USA