Matthew J. Griffin

Matt represents manufacturers and retailers in complex product liability matters involving pharmaceuticals and consumer products. He has been a member of numerous discovery and trial teams in state and federal courts across the country with a focus on the defense of mass tort, class action, and multi-district proceedings. He has also coordinated cross-border litigation for his product liability clients. Matt is a go-to resource for the identification and preparation of expert witnesses across a variety of disciplines. He has spearheaded successful challenges to the admissibility of plaintiff expert testimony concerning causation and warning issues that have resulted in litigation-ending decisions on behalf of his clients.

Matt defends professional liability and medical malpractice actions on behalf of a wide variety of healthcare providers, including physicians, nurses, mental healthcare providers, hospitals and long-term care providers. His additional experience includes the defense of business litigation, toxic tort, and legal professional liability matters.

• Defense Research Institute
• Massachusetts Bar Association
• Boston Bar Association
• Massachusetts Defense Lawyers Association
• American Bar Association (Chair – TIPS Pharmaceutical, Medical Device & Biotechnology Committee – 2023-2024 term)
• New Hampshire Bar Association

Juror Mistrust of Experts: Effective strategies for an emerging challenge, Massachusetts Defense Lawyers Association, Trial Practice Committee

• Secured case-ending rulings for pharmaceutical manufacturer in mass tort proceeding of over 8,000 cases alleging permanent gastrointestinal injuries
• Coordinated the successful defense of national litigation in state and federal courts on behalf of pharmaceutical manufacturer whose product was alleged to have caused suicide and psychiatric injury.
• Defended pharmaceutical manufacturer in the defense of individual and class action proceedings asserting claims for permanent neurological injuries and medical monitoring.
• Managed cross-border litigation to successfully resolve individual and class action product liability claims on behalf of global pharmaceutical manufacturer.
• Defense of global retailer in multi-plaintiff product liability litigation alleging that plaintiffs developed cancer from consumer talcum powder products.

• 2025 – Massachusetts Lawyers Weekly – Go To Lawyer Commercial & Consumer Law
• Legal 500 – Boston Elite – Life Sciences
• Super Lawyers Rising Star (2005-2008)

• Cooking, hiking, music, birdwatching & spending time with family