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  • The University of Chicago, B.A.
  • The University of San Diego, School of Law J.D.
  • Best Lawyers: Ones To Watch 2021
  • SuperLawyers Rising Stars
  • American Association for Justice, Member
  • Consumer Attorneys of California, Board Member 2025 – Present
  • Consumer Attorneys of San Diego, Board Member 2025 – Present
  • Western Trial Lawyers Association, Member
  • San Diego County Bar Association, Member
  • Lawyer’s Club, Member
  • Welsh Inn, Member 2025 – Present
  • Wallace Inn, Member 2020 – 2024
  • Friendly Sons of St. Patrick, Board Member 2026 – Present

Video Bio

Attorney Bio Video

David S. Casey III

Associate Attorney

David S. Casey III is an associate attorney at CaseyGerry. He specializes in personal injury and complex litigation. He has been recognized as one of the Best Lawyers: Ones to Watch since 2021. He has handled hundreds of personal injury matters since starting with the firm in 2019.

David is an active and involved member of the legal community. He currently serves on the board of the Consumer Attorneys of San Diego and the Consumer Attorneys of California, and is an active member of the American Association for Justice, the Welsh Inn, and The Lawyer’s Club. He is a 2023 graduate of the San Diego County Bar Leadership Academy and a 2025 graduate of the Consumer Attorneys of California Leadership Academy.

David attended the acclaimed Trial Lawyers College in Wyoming in 2018, where he spent one month undergoing intensive trial skills work. He recently completed an additional week of training with the Trial Lawyers College in Georgia in 2025.

In 2020, David participated in the inaugural year of the TAP program, where he tried multiple criminal cases as a volunteer deputy district attorney with the San Diego County District Attorney’s office in Chula Vista.

In law school, David focused on trial work, taking classes in trial advocacy and complex litigation. He received a CALI Award in Employment Law and Technology for his paper analyzing American and European attitudes towards online privacy and the “right to be forgotten.” While in school, David externed for the Honorable Anthony Battaglia for the Southern District of California, and worked at the much-admired Providence law firm Mandell, Schwartz & Boisclair, Ltd.

David is a San Diego native. He grew up in La Jolla and attended The Bishop’s School, where he played four years of varsity tennis. A third-generation attorney, David follows in the footsteps of his father, David S. Casey, Jr., as well as his grandfather, David S. Casey.

In his free time David enjoys running and trail running (he ran 15 races in 2025!), writing, tennis, live music, reading, and spending time with his wife and two young daughters.

N/A David S. Casey III

David S. Casey III is an associate attorney at CaseyGerry. He specializes in personal injury and complex litigation. He has been recognized as one of the Best Lawyers: Ones to Watch since 2021. He has handled hundreds of personal injury matters since starting with the firm in 2019.

David is an active and involved member of the legal community. He currently serves on the board of the Consumer Attorneys of San Diego and the Consumer Attorneys of California, and is an active member of the American Association for Justice, the Welsh Inn, and The Lawyer’s Club. He is a 2023 graduate of the San Diego County Bar Leadership Academy and a 2025 graduate of the Consumer Attorneys of California Leadership Academy.

David attended the acclaimed Trial Lawyers College in Wyoming in 2018, where he spent one month undergoing intensive trial skills work. He recently completed an additional week of training with the Trial Lawyers College in Georgia in 2025.

In 2020, David participated in the inaugural year of the TAP program, where he tried multiple criminal cases as a volunteer deputy district attorney with the San Diego County District Attorney’s office in Chula Vista.

In law school, David focused on trial work, taking classes in trial advocacy and complex litigation. He received a CALI Award in Employment Law and Technology for his paper analyzing American and European attitudes towards online privacy and the “right to be forgotten.” While in school, David externed for the Honorable Anthony Battaglia for the Southern District of California, and worked at the much-admired Providence law firm Mandell, Schwartz & Boisclair, Ltd.

David is a San Diego native. He grew up in La Jolla and attended The Bishop’s School, where he played four years of varsity tennis. A third-generation attorney, David follows in the footsteps of his father, David S. Casey, Jr., as well as his grandfather, David S. Casey.

In his free time David enjoys running and trail running (he ran 15 races in 2025!), writing, tennis, live music, reading, and spending time with his wife and two young daughters.

David S. Casey III

CaseyGerry Trial Lawyers

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