David Sergi – Sergi and Associates P.C.

Managing Partner

Mr. Sergi brings his unique background to the practice of law in San Marcos. He was born in Hamburg Germany where his parents where opera singers. His schooling included stints at the International Schools as well as British military schools. After he moved to Texas with his parents he attended Anderson High School in Austin and graduated from Allen Military Academy in Bryan. He thereafter graduated from Texas A and M university and South Texas College of Law.

His legal experience combines the honor of having served as a Law Clerk to a Federal Judge as well as having practiced with two of the largest and most prestigious law firms in the Country. He has also worked overseas representing major clients in Australia and served on the trial team of a defendant at the International Criminal Tribunal for the Former Yugoslavia in The Hague as well as attending arguments for one of his clients at the International Court of Justice in The Hague.

He has established a practice in San Marcos, which combines his courtroom expertise in the areas of commercial and criminal litigation along with his passion for family law as well as his commitment to represent business interests and developers in the Hays County area.

Counsel for:

  • Sky Marketing v Texas Department of State Health Services CV 03-21-0075 – CV decided by the Texas Third Court of Appeals ( Texas Delta 8 Case that enjoined DSHS from redefining hemp)
  • Salganic v City of Waco et al.Case No. 6:24-CV-00284 -ADA in the US District Court for the Western District of Texas, Waco Division ( Presumptive Testing Case)
  • Alsarif and Smoke Scene v City of Post Case No: 5-24-CV 000092-H pending in the United States District Court of the Northern District of Texas Lubbock Division ( Illegal takings case)
  • ESxPO Retail dba/Chronic Guru v Fla Department of Agriculture and Consumer Services Case No. 23-4508 RU and 24-00033 RX decided by the State of Florida Division of Administrative Hearings  ( Redefinition of Hemp case)

Address & Contacts


329 South Guadalupe Street San Marcos, Texas 78666


29.877374599893, -97.940343210071