John O'Brien serves as plaintiff's counsel to insurers (property and casualty subrogation) and other corporate clients (high deductible/self-insured entities) in complex tort, product liability, and business litigation as well as in commercial landlord/tenant litigation. Mr. O'Brien also leads the investigation of large property damage incidents arising from fires, explosions, water damage, water intrusion, equipment failure, construction defects, and design and engineering failures.
Mr. O'Brien's litigation experience includes private arbitrations (for example, Arbitration Forums, Inc.), jury trials in the Massachusetts Superior Court, and appeals before the Massachusetts Appeals Court, the Massachusetts Supreme Judicial Court, and the United States Court of Appeals for the First Circuit.
Mr. O'Brien's subject matter experience includes electrical systems (residential, commercial, and power transmission), electronics, sprinkler systems, fire alarm systems, roofing systems, domestic and industrial plumbing systems, HVAC (heating, ventilation, and air conditioning) systems, and municipal water/sewer mains. He has handled construction defect cases against architects, engineers, builders, and subcontractors. In addition, he has handled product liability claims involving household appliances, medical laboratory equipment, and industrial equipment. Mr. O'Brien also has experience in matters involving breach of contract, breach of fiduciary duty, conversion, fraud, and unfair trade practices.