John E. Rosenthal
Walnut Creek, CA
510.433.1196 Direct
866.611.8690 Facsimile
Assistant(s): Jennifer C. Sandner
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John E. Rosenthal is a partner focusing his pratice on complex product liability defense litigation, toxic tort litigation, insurance defense, as well as premises liability, enviornmental litigation, and general litigation matters.  He represents individuals, small companies, and national corporations in all stages of state and federal litigation. John has resolved a wide range of cases as first-chair trial counsel, co-chaired several trials to defense verdict, and prevailed on appellate briefs including before the U.S. Court of Appeals for the Ninth Circuit. Serving as national coordinating counsel, John has worked with his clients to shape national litigation strategies, managing the coordination of lawyers in jurisdictions across the country, andjoining trial teams in states other than California on pro hac vice admissions.

As a litigator, John has represented defendants and plaintiffs in matters involving business disputes, catastrophic personal injury or death, insurance coverage, construction defect, and intellectual property. He advises clients on regulatory compliance, including international agreements, federal regulations, and state law. He specializes in effectively communicating the technical, scientific, and medical issues often at the core of the defense of his clients. He has extensive experience in every aspect of complex litigation, from discovery to trial and appeal, including settlement negotiations, arbitration, mediation, and administrative hearings.

John has a strong track record for achieving favorable results for his clients. His winning strategy is to anticipate potential case outcomes and resolve litigation at the earliest available opportunity, often before trial, to limit his client’s exposure and contain costs. John believes that his client’s business operations and goals are paramount, taking both long and short-term litigation effects into consideration, and carefully calibrating legal representation at each stage of the case in order to best meet his client’s objectives. Applying fair and compelling legal analysis, he guides his clients through negotiation, mediation, and resolution.


American Bar Association's Certificate for Excellence Award in Health Law
Debate Finalist, Jessup International Law Moot Court Competition

Bar Admissions

Ninth Circuit Court of Appeals
United States District Court for the Northern District of California
United States District Court for the Eastern District of California
United Stated District Court for the Southern District of California
United States District Court for the Central District of California


J.D., University of California, Davis School of Law, 2004
B.A., University of California Davis, 2001 with Honors

Associations & Memberships

American Bar Association
Bar Association of San Francisco


Over the course of his practice, John has handled claims involving several pro bono matters, defending clients from underrepresented communities in unlawful detainer, debt collection, and bankruptcy proceedings.