Immigration Lawyer Denver & deportation defense Denver. The Heise Law Office in Denver, CO is dedicated exclusively to the practice of U.S. Immigration law.  We help individuals and families who wish to live and work legally in the United States navigate the immigration system, in order to achieve their dreams. We provide expert advice and legal services in a wide range of immigration matters, including family-based immigration, attaining a green card, deportation defense, helping victims of crime as well as assisting people who fear returning to their home country.