Senior litigator at Hathaway & Kunz, Mr. Rosenthal’s practice has primarily been focused on personal injury, commercial and construction law, representing both plaintiffs and defendants in litigation, trials and appeals. For over 30 years, Mr. Rosenthal has dedicated a mixture of skill and common sense to forge meaningful solutions to the legal and practical problems faced by his clients.

Mr. Rosenthal’s commitment to providing his clients outstanding legal service has earned him recognition by his peers, including the prestigious AV Pre-Eminent rating (5/5) from Martindale-Hubbell—the highest level of professional excellence and integrity. He has also been honored by fellow professionals by his selection as one of the Best Lawyers in America and a Mountain States Super Lawyer in the areas of personal injury and commercial litigation.

The statewide practice of Hathaway & Kunz has afforded Mr. Rosenthal the opportunity to represent clients in every one of the State’s nine judicial districts, before each of its federal judges, as well as before the Wyoming Supreme Court and United States Tenth Circuit Court of Appeals.

As a certified mediator and arbitrator, Mr. Rosenthal also often provides his experience, certification and special training to parties choosing to engage in mediation and arbitration. He is a Fellow of the American College of Civil Trial Mediators—Wyoming’s only mediator to be bestowed that honor.


  • Civil litigation and trials
  • Mediation and arbitration
  • Regulatory and communications law
  • Employment law and litigation
  • Government relations and lobbying

Professional Memberships and Leadership

  • American Inns of Court, Ewing T. Kerr Chapter, President, 2011
  • Member, Clients’ Security Fund Committee, Wyoming State Bar Association, 2013-Present
  • Fellow, American College of Civil Trial Mediators, 2013-Present
  • Chairman, Wyoming State Bar Convention, 2008
  • Wyoming Judicial Nominating Commission, 1996–2000
  • President, Wyoming Trial Lawyers Association, 1994–1995
  • Member, Public Information and Education Committee, Wyoming State Bar Association, 1993
  • Board of Directors and Past-President’s Board, Wyoming Trial Lawyers Association, 1987-2014
  • American Bar Association
  • American Association for Justice
  • Laramie County Bar Association
  • Rosenthal Named “Lawyer of the Year” by Peers

Community Leadership

  • Founder and Organizer, Boys and Girls Club of Cheyenne
  • Board Member, Boys and Girls Club of Cheyenne, 2006–Present
  • Organizer and Fundraiser, Cheyenne Ice and Events Center
  • Founder, Rosenthal “Team Player of the Year” Award, Cheyenne East High School Women’s Soccer, 2006–Present
  • Board of Directors, Cheyenne Symphony Orchestra, 1987–1992
  • President, Cheyenne Symphony Orchestra, 1991
  • Board of Directors, Cheyenne Symphony Foundation, 1993–1996
  • President, Cheyenne Symphony Foundation, 1993–1996
  • Sponsored Cyclist and Executive Committee Member, Spradley Barr Wind Chill Cycling Team, 2010-Present


  • J.D., University of Wyoming, 1981
  • B.A., Colorado College, 1978, Pi Gamma Mu
  • Certification, Institute for Conflict Management, Santa Monica, CA, 2004