Thiessen Law Firm

Eric Krohn 

on Google

2 months ago

I’ve know Mark and Taly for over 10 years now. While i’ve never personally needed their services, plenty of my friends have. From simple DWIs to even a friend who had a deadly accident in a Porsche. Mark handled all of their cases with the utmost professionalism and class. All of my friends have thanked me for recommending Mark. Mark is well regarded as the best DUI attorney in Texas and around the nation. As a resident of Aspen, we are lucky to have Mark open an office here. Far too many times is someone arrested for a misu... read more

Ashley Gidley 

on Google

4 months ago

I was born and raised here in Aspen. I’ve seen too many friends get in trouble and not have any local attorneys really challenge the government and fight for them. Most just want to be friends with everyone. I’m thankful that Mark Thiessen opened an office is Aspen to really fight for the people of Aspen and not just take whatever deals they want to offer. So if any of my friends or family are ever in trouble, I always send them to Mark. He’s simply the best and really cares for the interests of the people of Aspen. 

Grace Contro 

on Google

5 months ago

I recently hired the law firm of Mark Thiessen to represent me in a jury trial. I chose his firm because of his excellent reputation. I will never regret my decision.. I can’t emphasize enough his knowledge of the law as it applied to my case. He demonstrated professionalism and was always available for me & he treated me like I was a priority. He kept me up-to-date as to how the case would be handled, and any questions I had were answered with compassion and knowledge that would help me understand the legal system. He broug... read more

Masood Anjom 

on Google

5 months ago

Mark Thiessen is one of the nation’s leading DUI experts. I’ve watched and learned from him regarding breath and blood testing. It’s refreshing to see that he has taken his skill and knowledge to protect the citizens of Aspen. I hope this will make the police double think rushing to judgement and presuming a person is guilty. They must demand accurate and reliable scientific tests and conduct their field sobriety tests accurately. Mark and his knowledge is a welcome check and balance to the judicial system. A vigorous defens... read more

Andrew DiPaolo 

on Google

5 months ago

I've worked with the Thiessen Law Firm on a number of occasions as co-counsel on cases. Mark is one of the best criminal defense attorneys in the country.