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Mark has received 54 peer endorsements

Joseph Manuel Ruiz
Joseph Ruiz Houston, TX - Today

Relationship: Friend

I endorse this lawyer. Mark is absolutely a master at his craft. He helped me transition to a DWI/criminal defense practice. I couldn't have done it without such a tremendous mentor. His excellence in the courtroom is matched by his generosity to the criminal defense bar. He brings compassion, intellect, heart, and skill into battle each and every time, giving his clients an unmatched chance for success.
Charles Allen Pelowski
Charles Pelowski McKinney, TX - 28 days ago

Relationship: Fellow lawyer in community

Nobody knows more about defending DWIs than Mark Thiessen. He is the leading expert that criminal-defense attorneys around the state turn to to learn to try DWI cases. I wouldn't hesitate to recommend him to my closest friends and family. I endorse this lawyer.
Jason David Lawrence
Jason Lawrence Sugar Land, TX - 2 months ago

Relationship: Fellow lawyer in community

Mark is the best at what he does in Houston, no question about it.
Brian Vincent Manchester
Brian Manchester Bellefonte, PA - 3 months ago

Relationship: Worked for lawyer

I met Mark at Axion Labs in Chicago this June. We both took the ACS Driving Under the Influence of Drug Course. This course was very intense and it taught us all we needed to know about the pharmacology in drug DUI cases. At the conclusion of the course Mark took a very hard 100 question test to become Certified Lawyer-Scientists through the American Chemical Society. Mark of course passed with flying colors and he is only one of 12 Certified Lawyer-Scientists in the ENTIRE COUNTRY. This is how dedicated Mark is to his craft and to helping people accused of driving under the influence. Not only is Mark highly skilled and knowledgeable, he also teaches other lawyers how to properly defend DUI cases. There are very few qualified lawyers like Mark in the country let alone in Texas.
Glen W. Neeley
Glen Neeley Ogden, UT - 3 months ago

Relationship: Fellow lawyer in community

I met this talented lawyer about two years ago at advanced training for DUI lawyers regarding blood testing and GCMS. This attorney knows his stuff, is a certified lawyer-scientest, and defends people as if he himself is on trial. He has passion for his clients and his cases. There is nothing this attorney won't ethically do to defend his clients. I highly recommend this attorney as a DWI defense attorney.
Craig Alan Greening
Craig Greening Bryan, TX - 3 months ago

Relationship: Fellow lawyer in community

I endorse this lawyer.
Courtney Griffin Stamper
Courtney Stamper Waxahachie, TX - 5 months ago

Relationship: Fellow lawyer in community

Mark Thiessen is a fighter, on the jiu-jitsu mat and in the courtroom. He is fearless in the face of the State's evidence, and a true trial lawyer!
Michael S. Waddington
Michael Waddington Evans, GA - 5 months ago

Relationship: Fellow lawyer in community

I endorse Mark. He is a highly skilled attorney that is well respected in the legal community.
Christopher J Basner
Christopher Basner Haddonfield, NJ - 7 months ago

Relationship: Fellow lawyer in community

Attorney Mark Thiessen is the go to guy for DWI/DUI cases in Texas! Mark is a knowledgeable and aggressive lawyer. Some lawyers are aggressive, but not so smart. Some lawyers are smart, but, not aggressive. Mark has both. Also, Mark is passionate about what he does. I highly recommend him!
J L Carpenter
J Carpenter Houston, TX - 9 months ago

Relationship: Fellow lawyer in community

I endorse this lawyer.