About William
William T. Winter is an attorney based in Riverton, Wyoming, specializing in estate planning, elder law, and business law. With a legal career that began in 1987, he has dedicated himself to helping families and business owners navigate complex legal matters. A graduate of the University of Wyoming, William earned his Bachelor of Science in 1984 and his Juris Doctor in 1987, laying a solid foundation for his legal expertise. His legal journey commenced as a felony prosecutor in Phoenix, Arizona, where he handled high-stakes cases involving wiretaps, gang prosecutions, and complex drug offenses. This experience developed his skills in litigation and provided him with a understanding of the legal system.
In 1995, William returned to Wyoming and founded The Winter Law Firm PC in Riverton. Since then, he has been committed to serving clients with integrity and professionalism, building a reputation as a trusted advisor in his community. Throughout his career, William has received numerous accolades for his professional excellence. In 2009, he was named one of America’s Registry’s Top 10 Members in Law by the American Registry of Outstanding Professionals. His recognition extends internationally, as he has been inducted into the International Top 100 Magazine and is listed in the International WHO’S WHO of Professionals. Additionally, William has made significant contributions to estate planning publications and was featured in Wyoming PBS’s televised series "LEAVE A LEGACY," where he provided practical insights into estate and business exit planning.
William's practice is centered on assisting clients in preserving wealth, protecting businesses, and creating robust estate plans. He has advised ranchers, farmers, and entrepreneurs on structuring their affairs to ensure business continuity and safeguard assets from high medical costs. His expertise in Medicaid planning and asset protection has made him a valuable resource for individuals and families facing the details of elder law. As a past chair of the Wyoming State Bar Section on Estate Planning, Elder Law, Trusts & Probate, he has demonstrated leadership within the legal community. In 2025, a significant transition occurred when Wyoming Trust Attorneys acquired The Winter Law Firm, ensuring the continuation of over 25 years of dedicated estate planning service to the people of Riverton and central Wyoming. This acquisition allowed for the preservation of William's legacy in estate planning, Medicaid planning, and asset protection services throughout Fremont County and beyond.
William remains a member of the Wyoming State Bar and has been admitted to the Arizona and Colorado Bar Associations. He is also affiliated with WealthCounsel and Lawyers with Purpose, further enhancing his ability to serve his clients effectively. His office is conveniently located at 609 E Washington Ave, Riverton, WY 82501, where he continues to provide expert legal guidance.
