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John M O'Brien

About me

Born on August 20, 1965, John M. O'Brien graduated with a J.D. from the University of Southern California Center in 1990.

He started his legal career at one of the biggest law firms in California trying personal injury and wrongful death cases for 6 years.

In 1996, he formed his own law firm, John M. O'Brien & Associates and both John and his firm have achieved an excellent reputation for aggresive advocacy and integrity as well as an impressive record of significant jury verdicts and settlements.


Languages spoken: English, Spanish

Photos and videos

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Practice areas


  1. Personal Injury: 40%
    26 years, 1.4 thousand cases
  2. Car Accident: 30%
    26 years, 600 cases
  3. Nursing Home Abuse: 10%
    26 years, 250 cases
  4. Wrongful Death: 10%
    26 years, 200 cases
  5. Maritime: 10%
    26 years, 250 cases



Contingent (33-40%)

Payment types:

Cash, Check, Credit card

Attorney endorsements

719 total 

Are you an attorney? Endorse this lawyer

  • Matthew Lawrence Schneider

    Mr. Obrien is a superb attorney who is not afraid to fight toe to toe with large corporations in order to get large money verdicts or settlements for his clients. I highly recommend him if you are looking for an aggressive lawyer to advocate for on your behalf.


    Matthew Schneider Probate Attorney
    Relationship: Fellow lawyer in community

  • Victor Stephen Haltom

    Many years ago, Mr. O'Brien and I tried a case together in federal court. He was very well prepared and did an excellent job for his client. His good work resulted in victory in the case for his client. I have referred a number of cases to Mr. O'Brien over the years. The clients I have referred to him have all been pleased with Mr. O'Brien's top quality representation of them. Mr. O'Brien is professional and easy to get along with. I enthusiastically endorse him.


    Victor Haltom Criminal Defense Attorney
    Relationship: Fellow lawyer in community

Contact info

John M. O'Brien & Associates

717 K Street
Suite 530
Sacramento, CA, 95814

John M. O'Brien & Associates

9401 E. Stockton Blvd
Suite 225
Elk Grove, CA, 95624



We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Trial Advocate of the YearCapitol City Trial Lawyers Association2009
American Jurisprudence Awards in Contracts, Constitutional LawN/AN/A
AV Peer Review RatingMartindale-HubbellN/A
Work experience
TitleCompany nameDuration
Director, FounderJohn M. O'Brien & Associates, P.C.1996 - Present
Associate AttorneyBrobeck Phleger & Harrison1990 - 1996
Association namePosition nameDuration
American Board of Trial AdvocatesAssociate Member2008 - Present
United States Court of Appeals for the Ninth DistrictMember1996 - Present
United States Supreme CourtMember1996 - Present
American Bar AssociationMember1990 - Present
United States District Court for the Southern District of CaliforniaAttorney Member1990 - Present
United States District Court for the Northern District of CaliforniaAttorney Member1990 - Present
United States District Court for the Eastern District of CaliforniaAttorney Member1990 - Present
United States District Court for the Central District of CaliforniaAttorney Member1990 - Present
All California State CourtsAttorney Member1990 - Present
Consumer Attorneys of SacramentoMember1990 - Present
Sacramento County Superior CourtMember1990 - Present
Sacramento County Bar AssociationAttorney Member1990 - Present
University of Southern California Law ReviewMember1988 - 1990
Consumer Attorneys of CaliforniaMemberN/A
Capitol City Trial Lawyers AssociationMemberN/A
American Association for JusticeMemberN/A
State Bar of CaliforniaMemberN/A
Legal cases
Case nameOutcome
Wrongful Death Claim$2,500,000
Work Site Injury$2,000,000
See all legal cases 
Publication nameTitleDate
Rutherford Publishing HouseA Cup Of Coffee With 10 Of The Top Personal Injury Attorneys In The United States: Valuable insights you should know before you settle your case2014
Various Blog ArticlesPersonal Injury Blog2013
School nameMajorDegreeGraduated
University of Southern California Law SchoolLawJD - Juris Doctor1990
University of the PacificPolitical ScienceBA - Bachelor of Arts1987
Speaking engagements
Conference nameTitleDate
Business Leader Spotlight ShowWhy Do People Need a Personal Injury Attorney?2013