ABOUT Gregory S. Mason

Mr. Mason has been practicing law since 1990 with McCormick Barstow, handling a wide variety of civil litigation. Mr. Mason has tried over 20 cases to jury verdict. These jury trials included an alleged chromated copper arsenate exposure at a groundwater remediation site, aerially applied chemical drift cases, a wrongful death drowning case, two wrongful death motorcycle cases, premises liability, automotive liability and general negligence cases.


He has defended a judge in a proceeding before the Commission on Judicial Performance of the State of California. He has also tried court trials on insurance bad faith claims and commercial breach of contract claims. He has represented clients in major litigation matters, such as a 450 plaintiff mass toxic tort claim arising out of alleged metam sodium exposure; toxic tort claims, to include exposure to lead fumes, anhydrous ammonia and chlorpyrifos; conventional and organic crop damage and contamination by numerous insecticides and pesticides; complex product liability claims, to include an alleged multi-million dollar loss caused by robotic milking equipment and a wrongful death claim involving aircraft turbine engine failure; in excess of 100 wrongful death claims; quadriplegia and paraplegia claims; brain damage claims; professional errors and omissions matters; and business litigation matters, to include unfair competition and breach of contract.

Mr. Mason is admitted to practice law in the State of California, and U.S. District Court for the Eastern and Central Districts of California.

Honors and Awards

Mr. Mason is AV Preeminent Peer Review Rated with Martindale Hubbell. He is a fellow of the Litigation Counsel of America and a member of the Order of Veritas. Mr. Mason was selected as one of the Top 100 Northern California Super Lawyers (2014-2017) and has been included in the Northern California Super Lawyers list (2005, 2008-2019) for his expertise in Personal Injury Defense: General. He holds an Avvo rating of Superb (10.0). Mr. Mason has also been recognized by America’s Top 100 Attorneys .

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Areas of LAW

  • Accident
  • Bus Accident
  • Car Accident
  • Drunk Driving Accident
  • Motorcycle Accident
  • Personal Injury
  • Products Liability
  • Truck Accident
  • Wrongful Death

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