Malcom Gladwell had it right when he asserted that it takes 10,000 hours of serious commitment and practice to get to the top of your field.  Sometimes there is just no substitute for experience.  Mr. O’Hara’s experience includes over 34 years of handling complex and high stakes litigation.  He has put in his 10,000 hours and then some.  There are not many business litigation situations that he has not seen, analyzed, litigated and successfully resolved. 

Mr. O’Hara has been with the Firm since 1987.  He is a litigation partner in the Newport Beach and Las Vegas offices with a varied civil litigation practice involving construction, business, insurance coverage, real estate and class action claims.

John's construction practice focuses on the representation of residential real estate developers in complex, multi-party construction matters and the counseling of these clients in risk management, insurance and alternative dispute resolution.  In the insurance arena, he represents corporate and individual policyholders in disputes with insurers, including insurance bad faith litigation.  With respect to business litigation, his experience includes breach of contract claims, partnership disputes, trade secret disputes, fraud claims, franchise litigation, lender liability and unfair business practice claims.


Awards & Recognition

  • Selected to the Southern California Super Lawyers list, 2005-2018
  • Selected to the Southern California Super Lawyers Top 50 Orange County Lawyers list, 2008
  • AV® Preeminent Rating by Martindale-Hubbell Peer Review
  • Selected to the Orange County Best Lawyers list, Construction Litigation, 2016-2020

Professional Affiliations

  • Orange County Bar Association
  • Association of Southern California Defense Counsel
  • American Bar Association
  • Association of Business Trial Lawyers
  • Clark County Bar Association
  • District of Columbia Bar Association
  • Fellow - Construction Lawyers Society of America


  • California, 1985
  • District of Columbia, 1986
  • U.S. District Court, Central District of California
  • U.S. District Court, Eastern District of California
  • U.S. District Court, Northern District of California
  • U.S. District Court, Southern District of California
  • U.S. Court of Appeals, Ninth Circuit
  • United States Supreme Court
  • U.S. District Court, District of Nevada


  • The Catholic University of America Columbus School of Law  (J.D., 1985)
  • University of California, Irvine  (B.A., 1982)