About
Michael B. Rosenthal is a Cheyenne, Wyoming litigation lawyer and partner with more than 30 years of experience. His practice focuses on personal injury, commercial litigation, and construction law, representing plaintiffs and defendants in trials and appeals. He handles civil disputes involving serious injuries, wrongful death, product liability, employment, regulatory issues, and communications law. His work extends to mediation and arbitration for parties seeking alternatives to traditional courtroom litigation.
Rosenthal earned his J.D. from the University of Wyoming College of Law and his B.A. from Colorado College, where he belonged to Pi Gamma Mu. He later completed certification through the Institute for Conflict Management in Santa Monica, California. His legal education and conflict resolution training support his work in litigation, negotiation, mediation, arbitration, and appellate matters involving complex factual and legal questions.
Rosenthal has represented clients throughout all nine Wyoming judicial districts, before the state’s federal judges, and in appellate proceedings. His experience includes appearances before the Wyoming Supreme Court and the U.S. Court of Appeals for the Tenth Circuit. As a certified mediator and arbitrator, he helps parties resolve civil and commercial disputes outside trial. His background combines courtroom advocacy with structured dispute resolution and practical case evaluation.
Michael B. Rosenthal holds an AV Preeminent rating from Martindale-Hubbell and has been recognized by Best Lawyers in America and Mountain States Super Lawyers. He is a Fellow of the American College of Civil Trial Mediators and has held leadership roles with the Wyoming Trial Lawyers Association and Wyoming State Bar. His professional background reflects decades of civil litigation, appellate advocacy, mediation, arbitration, and service within Wyoming’s legal community.
Law Office Affiliations
- Partner, The Law Firm of Hathaway & Kunz, LLP
- Member, Wyoming State Bar Association
- Fellow, American College of Civil Trial Mediators
- President, Wyoming Trial Lawyers Association, 1994–1995
- Member, American Bar Association
- Member, American Association for Justice
- Member, Laramie County Bar Association
Licensed State
- Wyoming
Education
- University of Wyoming
Juris Doctor (JD) - Colorado College
Bachelor of Arts (BA)





- Arbitration
- Products Liability
- Wrongful Death




