Don A. Lesser

Practice areas

Insurance Coverage, Business Litigation, Professional Liability: Plaintiff

Focus areas

Bad Faith Insurance, Insurance, Legal Malpractice, Professional Malpractice – Other

Don A. Lesser is the visionary behind The Lesser Law Group, which maintains its presence across San Francisco, Sacramento, and Marin County, California. Over the span of more than three decades, he and his associates have diligently served a diverse clientele, ranging from local enterprises to Fortune 500 giants. Their expertise extends across various legal arenas, encompassing litigation, mediation, arbitration, and administrative proceedings. The firm has adeptly guided and advocated for corporations from a multitude of sectors, entangled in intricate disputes such as multimillion-dollar contract conflicts, corporate governance and shareholder litigation, financial impropriety claims, allegations of professional negligence, lawsuits pertaining to unfair business practices, employment-related disagreements, as well as a broad spectrum of matters linked to insurance.

Geographically, the firm’s reach extends throughout Northern California, including prominent cities like San Francisco, Oakland, San Rafael, Santa Rosa, Napa, and Sacramento.

Among Don’s paramount areas of specialization lies insurance law, a field wherein he boasts an unparalleled wealth of experience, accumulated over 35 years, representing innumerable policyholders, agents, brokers, and insurers. His insights cover a wide gamut of insurance policies and the associated coverage intricacies, playing a pivotal role in resolving claims disputes and navigating the complexities of bad faith litigation. Moreover, Don proactively counsels businesses on their coverage needs preemptively, with the intention of averting potential clashes over coverage down the line. His expertise extends to virtually all categories of commercial and personal liability and property coverage, including professional errors and omissions, directors’ and officers’ liability policies, commercial general liability policies, property and business interruption coverage, cyber policies, and commercial crime coverage. Don also zealously represents individual policyholders who have suffered property damage due to incidents like fire or water, as well as those grappling with the challenges of being inadequately insured in the face of substantial losses. He additionally stands up for policyholders in Examinations Under Oath and in cases involving fraud investigations.

In acknowledgment of his remarkable achievements, Don has consistently received the AV Preeminent* rating from Martindale-Hubbell for over three decades. This accolade represents the highest accolade attainable from the distinguished organization, reserved for legal professionals who exhibit exceptional degrees of professional excellence and unwavering ethical standards.

Don pursued his undergraduate studies in political science at the University of California, Los Angeles, subsequently obtaining his law degree from the Martin Luther King School of Law at the University of California, Davis in 1983. Before embarking on his legal career, Mr. Lesser was actively involved in environmental policy matters for the state of California. Following this, he spent a substantial nine-year tenure as a partner at a prominent San Francisco litigation firm before establishing The Lesser Law Group in 1999.

*AV®, AV Preeminent®, Martindale-Hubbell Distinguished, and Martindale-Hubbell Notable are registered certification marks employed under license in accordance with Martindale-Hubbell’s certification protocols, standards, and policies. Martindale-Hubbell® functions as the orchestrator of a peer review rating procedure, with ratings reflective of anonymous viewpoints from members of the legal community and the judiciary. Martindale-Hubbell® Peer Review Ratings™ are categorized into two facets: legal prowess and overarching ethical standards.