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:

2017 Year in Review

Year in ReviewWe are pleased to share with you a few highlights of the many successes Larson O’Brien LLP earned on behalf of its clients in 2017.


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.

Recent News

Jury finds Rose Bowl Aquatic Center at fault in molestation case, awards family millions

By HAYLEY MUNGUIA | June 25, 2018 FILE PHOTO. Swim class students hold water woggle over their heads during exercise during Deep Water Fitness class at Rose Bowl Aquatics Center in Pasadena Monday, October 23, 2017. (Photo by Walt Mancini/Pasadena Star-News/SCNG) A jury decided Monday to award $10 million in … Read More

California assisted death law overturned in court

By ALEXEI KOSEFF | May 15, 2018  Battling colon cancer, Elizabeth Wallner said she considers California’s new aid-in-dying law, which takes effect June 9, 2016, a tool to help her and others live their challenged lives on more of their own terms. Hector Amezcua The Sacramento Bee A judge … Read More

Volkswagen settles Arizona fraud charges for $40M; consumers to get payments

By Howard Fischer Capitol Media Services | May 2, 2018 Updated 2 hrs ago PHOENIX — Volkswagen will shell out $40 million to settle charges that it defrauded Arizona residents by selling them vehicles billed as clean-burning diesel that were not. The deal, being announced today, provides payments up to $1,000 to each … Read More

Colonies Partners files federal lawsuit against San Bernardino County, top state officials over corruption case

By JOE NELSON | jnelson@scng.com and RICHARD K. DE ATLEY | rdeatley@scng.com | The San Bernardino Sun PUBLISHED: March 1, 2018 at 12:51 pm | UPDATED: March 1, 2018 at 6:53 pm   Rancho Cucamonga developer Jeff Burum. Rancho Cucamonga investor group Colonies Partners LP on Thursday, March 1, filed a federal civil rights lawsuit against San Bernardino County … Read More

10 North Bay fire victims sue USAA insurance for fraud

Robin Bivin stands beside the burned wreckage of two of his family’s vehicles that were destroyed along with his Stony Oak Court home during the Tubbs Fire, in the Fountaingrove neighborhood of Santa Rosa, CA on Thursday, December 21, 2017. Bivin is one of 10 USAA Insurance customers who are … Read More

Two San Bernardino County officials and developer acquitted in public corruption case

Former San Bernardino County Supervisor Paul Biane in 2007. Biane and others were charged with bribery and conflict of interest relating to a land dispute. (Irfan Khan / Los Angeles Times) By: Veronica Rocha Contact Reporter September 1, 2017, 4:00 PM Two San Bernardino County officials and a Rancho Cucamonga … Read More

LA Landlords’ $5M Airbnb Action Moved To Fed. Court

By Dave Simpson  

Litigation boutique uses political credentials, communication skills to serve clients effectively

By Nicolas Sonnenburg, Daily Journal  LOS ANGELES – Former federal judge Stephen G. Larson and Robert C. O’Brien left big law firm management to focus on building a potent litigation practice. Growing a large firm wasn’t the goal, O’Brien already did that when he built the West Coast presence of … Read More

Judge allows lawsuit on life-ending drugs for terminally ill

By Amy Taxin | AP June 16 RIVERSIDE, Calif. — A judge on Friday allowed a legal challenge to proceed against California’s law letting terminally ill patients seek prescriptions for life-ending drugs. Riverside County Superior Court Judge Daniel A. Ottolia ruled that a group of doctors had provided sufficient information for a lawsuit over … Read More

Litigation Boutique Larson O’Brien LLP Announces Washington, DC Office

May 05, 2017 08:00 AM Eastern Daylight Time Larson O’Brien announced today that it is opening a Washington, DC office. The fast-growing Los Angeles litigation boutique has been active in Washington since its founding in January 2016. Name partner Stephen G. Larson, a former US district judge, successfully tried a … Read More