About Mike

Personal Injury Attorney in Claremont, CA


At many law firms, it can be difficult for clients to communicate and stay in contact with their attorney. But unlike other firms, Mr. O’Brien personally handles each and every legal matter himself. Clients are never handed over to associates or paralegals. Rather, you are guaranteed the personal attention your case deserves.

Mr. O’Brien graduated from the University of La Verne School of Law in 1989, where he earned his Juris Doctorate. Mr. O’Brien passed the bar later that year and since the beginning he has been a solo practitioner, specializing in the handling of Plaintiff’s Personal Injury Cases across the state of California. Mr. O’Brien and his staff are all bilingual and are proficient in reading and writing of the Spanish language.

Since its inception, O’Brien Law has been known for its personal care and attention to each and every client’s matter. Our office specializes in the aggressive, effective and compassionate handling of our clients’ personal injury cases. While the majority of these cases settle outside of court, many require litigation, arbitration, mediation or trial. Mr. O’Brien has years of knowledge, experience, and a proven track record when it comes to handling personal injury cases at all stages.

Mr. O’Brien has published books and magazines on personal injury law and case valuation and has dedicated his professional career to staying ahead of the curve in today’s complicated and competitive legal environment. Having spent his entire career advocating for those injured and damaged in accidents, Mr. O’Brien is uniquely qualified to maximize the compensation to which his clients are entitled.


Giving Back: Community Involvement

At O’Brien Law, we strongly support and are active in our local community

Lifelong Member Consumer Attorneys of California (CAOC)

Recognized by the County of Los Angeles Superior Court for his service to the county as a volunteer Arbitrator and Mediator

2015 and 2016 Inland Valley Daily Bulletin “Readers Choice Award for “Favorite Attorney”

Mike O’Brien and his father Eldon (along with other family members) are the founders and former publishers of O’Brien’s Evaluator, aka “the bible” for personal injury attorneys and Verdictum Juris which track jury verdicts and settlements in the personal injury cases in California

Member and Past President, Claremont Sunrise Rotary Club

Member and Volunteer Rotary International Service Organization


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