Thiessen Law Firm - Aspen, Colorado

Grace C.

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 brought in experts that related to my case which proved to be very beneficial since they were very knowledgeable and explained to the jury in a concise manner with their findings in my defense. Mark closing arguments to the jury were compassionate, factual and accurate. After 18 long months, waiting for trial, the jury found me NOT guilty,!! I was able regain my life and start living again. I will always be grateful to Mark and his team and would recommend him in a heartbeat. Thank you again.

Eric K.

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 misunderstanding. Or in the car of my friend in the Porsche, it was just a tragic accident and not a crime. Mark knows the laws, knows the science of blood and breath testing, and handles all types of criminal cases. Sometimes the arrest is not a crime. And sometimes bad things happen to good people but they still deserve a second chance. Mark’s heart and soul is in the right place to fight for the people of Aspen. Any client would be lucky to hire the Thiessen Law Firm. Knock on wood, but if I ever need them, they will be my first call.

Jeffrey B.

As a citizen of Aspen we have been waiting for a real trial lawyer to come in and stand up for our rights and make sure we are all being protected. Mark is an outstanding attorney and has become a great friend. He and his family are a great addition to our Aspen Community.

Ashley G.

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.

Matt K.

After the Distric Attorney in my case offered no plea deal, and was seeking the maximum sentence. (4 years) . Mark Thiessen was an absolute lifesaver during my courtcase . He was incredibly knowledgeable, responsive, and always took the time to explain everything clearly. His guidance and support helped me navigate a stressful situation with confidence. I was found NOT Guilty of of all charges. All 6 jurors found me not guilty. I'm so grateful for Mark and his hard work and dedication, and I wouldn't hesitate to recommend him and his associates to anyone in need of legal assistance.

Masood A.

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 defense is an essential and necessary requirement. I’m thankful to welcome Mark and his representation to Pitkin and surrounding counties.

Laura L.

The Thiessen Law Firm is the creme de la creme of law firms! Not only are the attorneys knowledgeable, but the paralegals are absolute rockstars! What an A Team! I was extremely nervous while facing DUI charges, but they really took care of me and helped me understand how the justice system works and what to expect. They were in constant communication with me about my case and kept me well informed. If you want an entire team of fighters in your corner, call the Thiessen Law Firm ASAP!

Lisset M.

I recently worked with Mr. Mark Thiessen on my DUI case, & I couldn't be more grateful for his expertise & support throughout the process. Not once did he make me feel judged & he provided me with clear guidance on what to expect.

Definitely recommend!