State Bar of California

United States District Court for the Central District of California

United States District Court for the Southern District of California

Best Lawyers in America (2024 Edition)

The George Washington University School of Law (J.D., 2013)

International Law Review

Mock Trial Board

Moot Court Board

Brigham Young University (B.A., 2005) cum laude

November 2017
Walking the High-Wire: Defending Against Liability for an Unauthorized Wire Transfer in CA

David co-authored an article published in the Orange County Business Journal entitled “Walking the High-Wire: Defending Against Liability for an Unauthorized Wire Transfer in California.” The article goes into detail about the laws governing unauthorized wire transfers and the best practices to minimize the risk that a bank will be held liable for an unauthorized wire transfer.

December 2014
Exclusive Use Provisions: Avoiding Common Pitfalls in Retail Lease Agreements

David co-authored an article published in the  California Real Property Journal entitled “Exclusive Use Provisions: Avoiding Common Pitfalls in Retail Lease Agreements.”

The Guide to International Legal Research

During law school, David was a contributor to The Guide to International Legal Research.  The Guide is an authoritative and comprehensive reference tool for law students and practitioners authored annually by The George Washington International Law Review.  The Guide is designed to assist both novices and professionals with their international legal research.

David Keithly is a Partner and complex litigation attorney at Mortenson Taggart Adams.  His practice focuses on complex business litigation, breach of warranty litigation, employment law counseling and litigation, and contract disputes.  Prior to joining Mortenson Taggart Adams, David practiced at Stradling Yocca Carlson & Rauth P.C., a full-service law firm headquartered in Newport Beach, and Schilling Law Group, P.C.  David has represented clients in high-stakes litigation matters in state and federal courts across the United States, including class action litigation.  David was involved in a multi-year wire fraud litigation in California State Court and won a three-week bench trial.  David was also on a team that prevailed in a multi-year litigation in the United States District Court for the Northern District of Texas where he obtained a complete defense verdict and a recovery of attorneys’ fees following a jury trial on the claims. 

David has represented clients in the manufacturing, consulting, banking, hospitality, finance, construction, pharmaceutical, telecommunications and tech industries.  David also represents individuals in employment matters and corporate, contract and property disputes. 

David devotes a considerable amount of his practice to representing automotive manufacturers and suppliers in class action and consumer litigation in state and federal courts.  David’s experience includes defending automotive clients in cases involving fraud-based claims; warranty claims under the Commercial Code, California’s Song-Beverly Consumer Warranty Act and Magnuson-Moss Warranty Act; and claims under California’s Consumer Legal Remedies Act and Unfair Competition Law.  David’s representation of manufacturers includes defending against product liability claims in state and federal courts involving claims for strict liability and wrongful death.

David is committed to providing pro bono legal assistance, representing clients through the Orange County Public Law Center and its Domestic Violence Clinic.  David is also involved in fundraising and recruiting for Public Law Center as a member of the Public Law Center Advocates.   During law school, David represented individual clients seeking relief under the National Vaccine Injury Compensation Program pro bono as a member of The George Washington University Vaccine Injury Clinic.

Mortenson Taggart Adams has proven their ability time and time again to achieve exceptional outcomes in complex matters.  Their approach is bespoke to each matter, but always effective, efficient and client-focused.  They are a strategic business partner that we rely on constantly to achieve our short and long-term goals.

Andrew Gahan, General Counsel, Valta Energy

Mortenson Taggart Adams’ legal expertise has helped us successfully navigate a high-profile lawsuit in federal court and perhaps most importantly, helped a fledgling startup get on sturdy ground.  Regardless of the curveballs that may be thrown at us, we know that Mortenson Taggart Adams has the experience and expertise to successfully handle it.

Sean Lake, Co-Founder, Bubs Naturals