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 from 13 Avvo reviews of this attorney.

Case Results

Recommendation

Advocacy

Practice Area Knowledge

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

13 Client Reviews


Client Insights

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AI-summarized from Avvo client reviews

Reviewers consistently praise the lawyer for being highly responsive, professional, and thoroughly prepared. Many highlight the lawyer's excellent communication, deep knowledge, and empathetic approach across various legal matters. Clients express strong satisfaction with the dedicated representation and highly recommend the lawyer's services.

Filter Avvo Reviews (13) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 6 reviews | Case Results

Posted by Jack | September 30, 2026 | Hired Attorney

Extensive Knowledge of TDLR

I hired Trevor because of his extensive experience with the Texas Department of Licensing and Regulation. I wanted my HVAC contractor license, but a previous employer and their license holder were so slow to respond to my expiration verification, that I could not tell if I was being blown off. Tre...vor explained that this makes them look bad in the eyes of the state department and sent them a letter. After a short period of time, I got my signed experience verification form signed by that license holder. Trevor walked me thru the steps of obtaining my Texas HVAC contractor license. I was very impressed with his work to get me the license I needed to begin my small business journey.

Posted by anonymous | September 24, 2026 | Hired Attorney

Hire Trevor!

I was blessed to have Trevor as my attorney. Despite the prosecutor being indecisive on a simple BS case, Trevor was very diligent and thorough with following up, and was even able to get my case dismissed. His communication is top-tier, in regards to the whole process, any issues, and even the next ...steps after the case is closed. He is was easy to get a hold of, and great with checking in and proving updates and the status of my case. I would highly recommend him.

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 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

Trevor C. Theilen's Lawyer Endorsements

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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