Lisa Dearden Trépanier


Lisa Dearden Trépanier is a founding partner of Trépanier Tajima. She concentrates on litigation involving complex business disputes, environmental, personal injury defense, real estate, and religious organizations.

Notable cases include:

    • $8 million construction defect arbitration award for Beverly Hills luxury home developer
    • Nuisance settlements or abandonment of several personal injury lawsuits against major religious organizations for decades-old claims
    • Six figure jury award against major hardware retailer in premises liability case
    • Settlement of full policy limits in wrongful death lawsuit against homeowner who provided alcohol to minors
    • Six figure settlement in bicycle accident against landscaping company

Ms. Trépanier was Senior Counsel with Crockett & Associates prior to founding Trépanier Tajima. She was previously an associate at Latham & Watkins and Dewey Ballantine representing Fortune 500 companies in environmental litigation, including defending multiple-plaintiff and individual toxic tort actions, and defending and pursuing claims concerning contaminated properties. She successfully defended claims of personal injury and product liability. She oversaw the case management of 10,000+ toxic tort claims against a major oil company; the vast majority of the claims were dismissed or settled for minimal amounts. Ms. Trépanier has also represented individuals in employment discrimination (race & disability), personal injury, wrongful death, and premises liability litigation. She has experience in all stages of litigation, including jury trials and appeals.