Michael R Leslie

Practice Areas

Mike Leslie is an accomplished trial lawyer and negotiator who focuses on complex environmental litigation, including litigation brought under CERCLA, CEQA, common law environmental torts, and California’s Proposition 65. Mike is a leader in the fields of ESG, "Greenwashing," and state and federal Environmental Justice issues and has published and spoken widely on these topics. Mike also has deep expertise in complex commercial litigation, having prevailed in cases involving real estate, class actions, breach of fiduciary duty, fraud, misappropriation of trade secrets, and Section 17200, California’s unfair business practices statute.

Mike has a long-standing record of successfully representing clients in the litigation and trial of high-stakes complex actions. Mike regularly represents Fortune 500 corporations, multinational energy companies, governmental agencies, and small businesses. He has tried numerous cases to verdict, negotiated complex multi-party consent decrees with state and federal agencies, and won both significant plaintiff and defense verdicts. In addition to his busy trial practice, he has also won important appeals for his clients before the California Court of Appeal and the Ninth Circuit Court of Appeals.

Mr. Leslie is a leader in many of the leading environmental bar organizations and is also a frequent speaker on complex litigation and trial practice.