LAWYER PROFILE
Mark S Cheffo

Mark S Cheffo

USA 2026

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Ranked in 2 practice areas

About

Provided by Dechert LLP

Practice Areas

Mark S. Cheffo, co-chair of Dechert’s global litigation practice, has extensive experience serving as national coordinating and trial counsel in complex product liability, insurance and mass torts litigation. He acts for corporations and individuals in the pharmaceutical, medical device manufacturing, bioengineering, insurance and industrial products industries, amongst others. Mr. Cheffo has also handled numerous toxic and environmental exposure suits.

Mr. Cheffo has taken part in several trial teams in high-profile pharmaceutical litigation, managing all stages of a dispute from negotiation, through pre-trial proceedings to trial. In addition to defending expert and company witness depositions, Mr. Cheffo has briefed and conducted numerous Daubert and Frye challenges. He has also briefed and argued dispositive motions and appeals in state and federal courts throughout the United States. Mr. Cheffo also has considerable experience conducting arbitrations and mediations relating to disputes.

Mr. Cheffo maintains an active pro bono practice, assisting clients in a variety of matters. Most notably, he obtained a judgment of more than US$1.7 million for liability and legal fees on behalf of 11 restaurant workers in New York’s Chinatown. He also obtained a jury verdict in a defamation case and obtained a directed verdict in a case brought by three plaintiffs who had been shot while in prison.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Product Liability & Mass Torts - USA - Nationwide

Band 1
Band 1

Individual Editorial
Mark Cheffo is highly experienced as both national coordinator and trial counsel for numerous mass torts in the pharmaceutical and environmental spaces.

Product Liability: Pharmaceutical - USA - Nationwide

Band 1
Band 1

Individual Editorial
Mark Cheffo is highly experienced as both national coordinator and trial counsel for numerous mass torts in the pharmaceutical and environmental spaces.

Strengths

Provided by Chambers

  • Mark is terrific. He is a really experienced and trusted advocate who is great with witnesses.

    Product Liability & Mass TortsChambers Guide to the USA
  • Mark is one cool customer under fire. Everyone likes him.

    Product Liability & Mass TortsChambers Guide to the USA
  • Mark is fantastic in terms of strategy and he works brilliantly with other firms.

    Product Liability & Mass TortsChambers Guide to the USA
  • Mark is a great lawyer, he's one of the best.

    Product Liability & Mass TortsChambers Guide to the USA
  • Mark is very deep in terms of his ability to handle matters in real time. His instincts are also spot-on.

    Product Liability & Mass TortsChambers Guide to the USA

Ranked Individuals at Dechert LLP (132)

California

District of Columbia

Illinois

Massachusetts

New York

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