Derek L. Seal

Derek L. Seal

Administrative / Regulatory Law Environmental Law Water Law
Recognized in Best Attorney USA since 2016

About Derek

Derek practices administrative and regulatory law with a focus on environmental permitting and enforcement. With more than 30 years of regulatory and legislative experience, Derek assists clients with a wide range of matters, including Texas Commission on Environmental Quality (TCEQ) contested case hearings and regulatory compliance, water supply and water rights, air, water, waste, and wastewater discharge permitting.Derek previously held roles as General Counsel of the TCEQ, Counsel to former TCEQ Chairman Kathleen Hartnett White, General Counsel in the Texas Legislature for the House Committee on Environmental Regulation, and General Counsel and Chief of Staff for Representative Warren Chisum.

Derek practices administrative and regulatory law with a focus on environmental permitting and enforcement. With more than 30 years of regulatory and legislative experience, Derek assists clients with a wide range of matters, including Texas Commission on Environmental Quality (TCEQ) contested case hearings and regulatory compliance, water supply and water rights, air, water, waste, and wastewater discharge permitting.Derek previously held roles as General Counsel of the TCEQ, Counsel to former TCEQ Chairman Kathleen Hartnett White, General Counsel in the Texas Legislature for the House Committee on Environmental Regulation, and General Counsel and Chief of Staff for Representative Warren Chisum.

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Reviews

4.6 / 5

38 Reviews

1,046 Profile Views

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Jessie Rath

Jan 31, 2026

Really helpful and compassionate service from everyone at Derek L. Seal's firm

I wasn't sure who to call for my Administrative / Regulatory Law problem, but I'm so glad I went with Derek L. Seal. They really listened to me and understood my situation. It was such a relief to hav...

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Judy Nikolaus

Jan 31, 2026

Excellent legal representation provided by Derek L. Seal for my Administrative / Regulatory Law case

Best lawyer for Administrative / Regulatory Law in Austin. Period. I've seen others, but Derek L. Seal is on another level. They truly care about their clients and work hard to get the best results. I...

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Tracey Bradtke

Jan 31, 2026

Reliable lawyer you can count on - Derek L. Seal provided excellent service throughout

Solid experience overall with the law firm of Derek L. Seal. They know Administrative / Regulatory Law inside and out and gave me great advice. Very helpful and got the job done exactly as they said t...

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Craig Langosh-Klocko

Jan 31, 2026

Reliable lawyer you can count on - Derek L. Seal provided excellent service throughout

It's hard finding a reliable lawyer these days, but Derek L. Seal in Austin is definitely one of the good ones. Would use them again if needed without hesitation. They are professional, responsive, an...

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Nadine Crist

Jan 31, 2026

Many thanks to Derek L. Seal for the hard work and dedication to my legal matter

If you need a Administrative / Regulatory Law lawyer, Derek L. Seal is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my ca...