David J. Darnell

David J. Darnell is a highly skilled business and commercial litigation attorney in Orange County, California. With over two decades of experience, Mr. Darnell represents clients in high-stakes legal disputes involving corporate governance, fiduciary duties, fraud, partnerships, trade secrets, and complex contract matters. Known for his trial success and strategic legal approach, he consistently delivers powerful results in courtrooms, arbitrations, and mediations.

Mr. Darnell earned his B.A. in Communications and Environmental Studies from the University of California, Santa Barbara, where he was named to the Dean’s List. He received his J.D. from Southwestern School of Law in 2000, where he served on the Board of Governors for the Moot Court Honors Program. He earned several advocacy awards, including Best Brief and Semi-Finalist recognition in the American College of Trial Lawyers National Moot Court Competition.

Throughout his career, Mr. Darnell has delivered major wins for both plaintiffs and defendants in complex civil litigation. His results include multiple multimillion-dollar judgments and settlements, such as a $15.5 million settlement in a breach of fiduciary duty case and a $2.453 million trade secret verdict following a unanimous jury decision. He has also obtained complete dismissals in high-stakes shareholder disputes, constitutional law matters, and significant fraud cases.

Licensed to practice in all California state courts, the U.S. District Courts across California, and the U.S. Court of Appeals for the Ninth Circuit, Mr. Darnell is trusted for his command of complex commercial law and his trial experience. His courtroom presence and case strategy have repeatedly resulted in dismissed claims, favorable verdicts, and full recovery of judgments, including interest and costs.

Recognized as a Super Lawyer annually since 2015 and previously a Rising Star from 2012–2014, David J. Darnell is widely regarded as one of California’s top business litigators. With a client-focused mindset and a track record of excellence, David J. Darnell provides strong advocacy for individuals, corporations, and business entities navigating legal disputes across various industries.

Law Office Affiliations

• Senior Partner, Callahan & Blaine
• Member, The State Bar of California

Licensed State

• California

Education

• Southwestern University School of Law
  Juris Doctor (J.D.)
• University of California
  Bachelor of Arts (B.A)

Awards & Badges