Allen D. Petit

Attorney at Thomas J. Henry Law's San Antonio Office

Mr. Allen D. Petit is an attorney at Thomas J. Henry Law, joining the firm’s San Antonio office in 2014. Mr. Petit is an experienced litigator and a fierce advocate for his clients inside and outside of the courtroom. Mr. Petit currently works alongside the firm’s senior litigation attorneys in pursuit of fair compensation for individuals injured in auto accidents, trucking accidents, company vehicle accidents, on-the-job accidents, and product liability accidents.

Mr. Petit received his Juris Doctor from Quinnipiac University School of Law and also holds a Bachelor of Science from the University of Rhode Island. During law school, Mr. Petit interned with multiple firms, drafting motions, conducting legal research, and preparing depositions and hearings. While in law school, Mr. Petit was associate editor of the Health Law Journal and treasurer of the Student Bar Association.

Mr. Petit also interned with a firm handling property and asset management – a role that required Mr. Petit to become familiar with issues concerning bankruptcy and probate law.
At Thomas J. Henry Law, Mr. Petit has handled many severe injury cases and achieved the real results that his injured clients need and deserve. Mr. Petit’s clients can count on a knowledgeable, diligent fighter in their corner during their personal injury case.



  • State Bar of Texas


  • Quinnipiac University School of Law, Hamden, Connecticut (J.D.)
    • Cum Laude
    • Associate Editor of the Health Law Journal
    • Treasurer of the Student Bar Association
    • Phi Delta Phi
  • University of Rhode Island, Kingston, Rhode Island (B.S.)
    • Magna Cum Laude
    • Beta Alpha Phi Business Honor Society
    • Omicron Delta Kappa Leadership Honor Society
    • Chief Financial Officer for Student Government
    • Sigma Phi Epsilon Fraternity


At Thomas J. Henry Law, our guiding principle is to provide our clients with the best legal representation possible for their personal injury case. Our 200+ attorneys fight diligently for their injured clients each and every day, striving to achieve justice and the compensation they deserve for the life-altering injuries they sustain. We greatly value our clients’ feedback — see what Allen Petit’s clients had to say about their experience.

My attorney Allen Petit is a wonderful attorney. He took the time to explain the procedures and terminology to us. — Chiquila Lee

Mr. Petit was a great attorney to work with. He kept me inform and was on top of getting me the best settlement possible. I highly recommend him and will be happy to work with him again if ever needed. — Rose Gutierrez

Great experience. Everyone is extremely professional and exceeded my expectations of this experience. Me. Allen Petit is the best. — Steven Galvan

The lawyers and associates of Thomas J. Henry Law helped my case go smoothly, albeit a bit long. Allen Petit was particularly helpful and professional! I personally thank him for his amazing work! — Priscilla Gwyn

It was good. Mr.petit got straight to the point and got me a settlement that I was happy about — Susan Talamantes

Mr. Petit did a great job in handling an auto accident case for me and my children. After a long process, the ordeal is over and I would recommend this firm to others who have been involved in auto accidents. — Wade Middleton

My attorney Allen Petit was amazing! He helped me anytime I had any sorts of questions and he was always eager to assist me with any concerns I may have had. This law firm is amazing and I’m glad I used them! — Christal Cantu

Great law firm. Allen Petit was very informative and friendly. Highly recommend. Very pleased! — Zach Cueva

Great work with the team at Thomas J HENRY. Every question I had was answered quite well, and the help from Alan at the office on the NW side of San Antonio helped so much even though he had to deal with me never answering my voicemails! Thank you so much. — Cooper Kerbow

My attorney Mr. Petit was very attentive and very helpful in settling my claims in a very timely manner. — Darlene Moreno

Allen Petit and his team did a great job handling my case. The office staff is always really friendly and helpful. The whole firm is really great at explaining every step of the process and I’m really happy with the settlement they were able to get me. Thanks, Thomas J Henry! — Laura Sherwin

My experience with TJH Law Firm was top-notch throughout the entire process. Thanks Mr. Allen Petit for providing coaching and mentoring when I was ready to give up, but above all… thanks for listening and fighting the good fight!!! Cheers sir!! — Tim Mccain

Do not wait! If you have been injured in an accident, call Thomas J. Henry Law. We have San Antonio car accident attorneys and San Antonio truck accident lawyers available 24/7, nights and weekends to assist you with your claim.

Black and white portrait photo of Thomas J. Henry Attorney Allen Petit

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