Prior to joining Poskus, Caton & Klein, P.C., Mr. Thiessen clerked for the Honorable Dennis A. Graham and the Honorable Jerry N. Jones of the Colorado Court of Appeals. He is admitted to practice law in the State of Colorado and is a member of the Trust and Estate section of the Colorado Bar Association. While receiving his Juris Doctorate from the University of Colorado School of Law, Mr. Thiessen interned for the Honorable C. Jean Stewart of the Denver Probate Court and became familiar with that court's procedures. Mr. Thiessen is actively involved in the Arvada Sunrise Rotary Club and serves as its New Generations Chair. He enjoys spending his spare time competing in ultramarathons, hiking and skiing.