About
Kevin K. Kessner is a Wyoming lawyer at Yonkee & Toner, LLP whose practice covers litigation, estate matters, business law, property lawsuits and disputes, and personal injury. His work includes litigation in state, federal, and chancery courts. He handles business and estate planning, probate and trust administration, landowner and property disputes, and high-asset divorce. His practice further includes business and trust disputes and transactional matters involving businesses and estates.
Kevin earned his B.A. from the University of Wyoming before continuing his legal education at the University of Wyoming College of Law. He received his J.D. from the law school and was admitted to the Wyoming Bar in 2007. His education in Wyoming provided the foundation for a legal career focused on serving clients throughout the state.
Kevin began his legal career in Sheridan after completing law school. He became a partner in 2011 and has developed a broad practice involving litigation and transactional work. His experience includes representing clients in appellate matters that have resulted in published Wyoming Supreme Court opinions. He has earned an AV Preeminent® rating from Martindale-Hubbell. His professional work combines courtroom advocacy with planning and transactional representation.
Kevin K. Kessner contributes to the Wyoming legal and local communities through several leadership roles. He serves as a Civil Service Commissioner for the City of Sheridan and as a Fourth Judicial District Commissioner for the Wyoming State Bar. His service has included board positions with Dunham Private Trust, Sheridan County YMCA, and Sheridan Memorial Hospital. These roles complement his legal practice and longstanding professional involvement in Wyoming.
Law Office Affiliations
- Attorney, Yonkee & Toner, LLP
- Member, Wyoming State Bar
Licensed State
- Wyoming
Education
- University of Wyoming College of Law
Juris Doctor (JD) - University of Wyoming
Bachelor of Arts (BA)

- Business Litigation
- Tax
- Power of Attorney
- Trusts
- Wills & Living Wills
- Motorcycle Accidents
- Slip & Fall Accidents
- Wrongful Death
- Litigation




