Bill is an attorney with over 25 years of legal experience in both the public and private sectors. He is experienced in a broad range of legal fields including federal, state, and local tax matters, criminal matters, litigation, administrative hearings, contract and business agreement drafting, and estate planning and probate. Bill has also assisted clients in forming business entities, including limited liability companies, corporations, and non-profit corporations in Colorado.
Bill has worked as a deputy district attorney, an assistant city attorney, and assistant attorney general. He teaches classes in professional ethics including business ethics, continuing education courses for attorneys, and has written and lectured on FERPA issues. His publication on student record privacy rights (FERPA) is used by university advisors, administrators, and faculty throughout the country.
After Bill earned an advanced degree in tax law (LLM) from the Sturm College of Law at the University of Denver, he has devoted a majority of his practice to representing clients in tax compliance and controversy matters. He has successfully represented over 500 clients with IRS and state tax issues. Bill has also assisted hundreds of business clients in setting up their businesses and in providing a broad array of legal services that include entity formation and document drafting.

Mr. Van Dusen earned a Juris Doctor Degree in Law and an advanced Master’s Degree in Law in Taxation from the University Of Denver Sturm College Of Law. He has more than 25 years of experience in the public and private sectors, as well as experience in tax law, criminal matters, litigation, municipal law, contract and legislation drafting and several other legal fields. Bill has served as an Assistant Attorney General, Deputy District Attorney and Assistant City Attorney in the state of Colorado, and he has represented clients in court, including jury trials. Mr. Van Dusen has assisted many businesses in restructuring, and he excels in representing clients in audit hearings before the IRS Examination and Appeals Division as well as the US Tax Court.