Welcome

Larson O’Brien is a trial and appellate firm located in Southern California and Washington, D.C., and practicing across the United States and internationally. With a reputation for achieving results, we proudly offer our expertise in the areas of:

Complex Litigation

Investigations, Compliance, and Defense

 Domestic and International Arbitration

State and Federal Appeals


2016 Year in Review

Year in ReviewOne year ago, in January 2016, Stephen G. Larson and Robert C. O’Brien, together with nine accomplished colleagues, established a new boutique law firm focused exclusively on trials, arbitrations, appeals, and investigations.

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