Trevor C. Theilen

PRO

Trevor C. Theilen

5.0
Rating: 7.2

Licensed for 17 years

Criminal defense Lawyer at Plano, TX
Practice Areas: Criminal Defense, Licensing, Administrative Law

Po Box 863674, Plano, TX

Virtual Consultation Available

Free Consultation

About Trevor

Reviewers Often Mention

Based on insights of this attorney.

Case Results

Recommendation

Advocacy

Communication Style

Biography

Protect your license! Call me now

Practice Areas

3

Practice Areas

Criminal Defense 50%

Criminal Defense in North Texas, centered in and around Collin County.

5 years

50%
Administrative Law 25%

Statewide Professional License Defense & Consulting Services. If you face revocation/fines or pending criminal charges, call me. I fight license boards & consult with licensees/criminal defense lawyers to protect licensees during their criminal case.

25%
Licensing 25%

Statewide Professional License Defense & Consulting Services. If you face revocation/fines or pending criminal charges, call me. I fight license boards & consult with licensees/criminal defense lawyers to protect licensees during their criminal case.

15 years

25%

Fees and Rates

Cost

Free Consultation

$0 first 15 minutes


Payment Methods

  • Cash
  • Check
  • Credit Card

Licenses

Licensed in Texas for 17 years

State: Texas

Acquired: 2008

Eligible to Practice in Texas

No misconduct found

Location

Trevor Theilen Law Office

Po Box 863674, Plano, TX, 75086

trevlaw.com/

Trevor C. Theilen's Reviews

Avvo Review Score

5.0 /5.0

9 Client Reviews


Client Insights

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AI-summarized from Avvo client reviews

Reviewers overwhelmingly praise the lawyer for being highly responsive, professional, and deeply knowledgeable. Clients frequently highlight the lawyer's compassionate, thorough approach and clear communication, with many expressing strong satisfaction with the favorable outcomes achieved in their legal matters.

Filter Avvo Reviews (9) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 9 reviews

Posted by Bryan | August 25, 2026 | Hired Attorney

Effective and accessible

Trevor handled a professional licensing matter for me and I could not have asked for better. He was easy to reach throughout, communicated constantly, and moved quickly — which mattered, because I was working against a firm deadline. The outcome was exactly what I was hoping for. If you are a license...d professional dealing with a state board, I would recommend him without hesitation.

Posted by Fabian | August 22, 2026 | Hired Attorney

Efficient

I had an excellent experience working with Trevor Theilen. He assisted me with an important legal matter involving obtaining and preparing documentation needed to respond to a professional licensing board. From the beginning, Trevor was extremely responsive, knowledgeable, efficient, and professional.... What impressed me most was how quickly he understood exactly what was needed and took care of the matter without unnecessary delays. I would highly recommend Trevor to anyone looking for an attorney who is responsive, efficient, professional, and genuinely committed to getting the job done. I would not hesitate to work with him again.

Posted by Lillian | July 10, 2025 | Hired Attorney

Professional and responsive

I had the pleasure of working with Mr. Theilen on a complex healthcare legal matter, and I cannot recommend him enough. From our first consultation, it was clear that he brought not only deep expertise in healthcare law, but also a level of professionalism, responsiveness, and genuine care that made ...all the difference during a stressful time. Highly recommend!

Posted by Stacey | June 28, 2025 | Hired Attorney

Awesome lawyer who negotiated a felony charge to a class C misdemeanor.

Trevor did an awesome job as my sister’s defense attorney. I planned to meet with him to prepare me for what to expect when I testified in court the next week, but he negotiated a plea deal she couldn't refuse. She told me, “Wow, he really heard me!” Our family is so thankful that her career will ...remain unblemished by this unwarranted (or ridiculous) felony charge she received. She said Trevor deserves all the credit for making that happen.

Posted by Craig | March 18, 2025 | Hired Attorney

The Hardest Working Lawyer I've Worked With!

Trevor is one of the best attorneys I have ever had the pleasure of working with in my three decade-long career of legal needs. Not only was he very knowledgeable on every aspect of the law, Trevor also was available via text or email virtually at any time and always promptly returned every phone cal...l within 1 business day. I had a state jail felony that was enhanced to a second-degree felony -Trevor was able to get it reduced to a 1244 b deferred adjudication 2-year misdemeanor probation! In the unfortunate event that I ever need another criminal defense attorney, Trevor will be the first person that I call! I cannot thank him enough for his work on my case!

See All Client Reviews

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Experience

Rating:  7.2 (Very Good)

Work Experience

2020 - 2023

Senior Prosecutor, Texas Department of Licensing & Regulation

2011 - 2020

Enforcement Prosecutor, Texas Department of Licensing & Regulation

2009 - 2011

Assistant District Attorney, Anderson County Criminal District Attorney’s Office

Associations

2024 - Present

Texas Criminal Defense Lawyers Association

Nexus Committee

2023 - Present

Collin County Criminal Defense Lawyers Association

2023 - Present

Texas Criminal Defense Lawyers Association

Education

2008

Baylor University School of Law

Doctor of Jurisprudence/Juris Doctor (J.D.)

Speaking Engagements

Languages

English

Avvo Rating

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Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution