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

Avvo uses AI to summarize reviews left for lawyers, providing a helpful overview of overall sentiment. Each summary is based on up to 500 of the most recent reviews and is refreshed upon submission of each new review. The number of reviews used may be displayed.

AI-summarized from Avvo client reviews

Reviewers consistently praise this lawyer for being highly responsive, professional, and deeply knowledgeable. Clients highlight the lawyer's exceptional communication, efficiency, and compassionate approach, noting successful outcomes in various legal matters. Many express strong gratitude 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 13 reviews

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 Tayo | September 30, 2026 | Hired Attorney

Exceptional Advocacy When It Mattered Most

I cannot speak highly enough of lawyer Trevor Theilen and the exceptional job he did representing me in my matter before the Texas Real Estate Commission (TREC). From the beginning, Trevor did something that immediately stood out to me, he took the time to truly listen. He wanted to understand not... only my case, but also my story and everything that had led to this point. He carefully reviewed the case file and documentation that had already been submitted to TREC before he came on board, and his level of preparation was evident. Trevor approached my case with remarkable attention to detail. He analyzed the facts thoroughly, identified the important issues, and addressed them with precision, clarity, and conviction. When it was time to plead my case before TREC, I felt that I had a lawyer beside me who genuinely understood what was at stake and was fully prepared to advocate on my behalf. What impressed me most was that his representation never felt routine or transactional. He was invested. He was prepared. He was intentional. And when it mattered most, he showed up and represented me exceptionally well. Regardless of the outcome, I walked away from the hearing knowing that my lawyer had given my case the preparation, attention, and advocacy it deserved. There is tremendous peace in knowing that the person representing you has done everything possible to make sure your case is properly and fully presented. Trevor Theilen did exactly that for me. I am sincerely grateful for his counsel, professionalism, preparation, and representation. If you are looking for a lawyer who will take the time to understand your situation, study the details, and advocate for you with both precision and conviction, I highly recommend Trevor Theilen. Exceptional representation from beginning to end.

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 Kirsten | August 25, 2026 | Hired Attorney

Highly recommended

I highly recommend Trevor. From the moment I hired him, he was incredibly responsive and immediately got to work on my case. Within a day, he had already made significant progress and obtained answers regarding the issue that was most important to me. I was extremely impressed with how quickly and ef...ficiently he handled everything. I was also very impressed with his communication throughout the entire process. Whenever an important email or development came up, Trevor would text me so we could discuss it, and I never felt like I was left wondering what was happening with my case. He was professional, efficient, knowledgeable, and clearly knew how to navigate the issues involved. I am very grateful that I hired Trevor and genuinely felt that I was in capable hands. He handled my matter quickly, communicated exceptionally well, and made a complicated and stressful situation much easier to navigate. I would absolutely recommend him to anyone needing a knowledgeable, responsive, and effective attorney.

See All Client Reviews

Trevor C. Theilen's Lawyer Endorsements

Endorse Trevor

No Endorsement Data Available Yet
This attorney hasn't received any attorney endorsements recently on Avvo.

No Endorsement Data Available Yet
This attorney hasn't created any attorney endorsements recently on Avvo.

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

Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.

What determines Avvo Rating?
  • Experience & background Years licensed, work experience, education
  • Legal community recognition Peer endorsements, associations, awards
  • Legal thought leadership Publications, speaking engagements
  • Discipline Disciplinary information may not be comprehensive, or updated. We recommend that you always check a lawyer's disciplinary status with their respective state bar association before hiring them.
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