About Us Jon S. Henricksen, P.C. has been representing clients in Clackamas County, including Oregon City, Milwaukie, Gladstone, Canby, Aurora, West Linn, Lake Oswego, Damascus, Sandy, Welches, Estacada, and Molalla for nearly 40 years. Our practice focuses on DUII representation, criminal defense, probate and wills, and real estate law.