Born and raised in Wyoming, Sean understands that when you need legal representation in Wyoming, it should be done the Wyoming way. Diligent, determined, and driven, Sean strives to efficiently and effectively provide reasonable and rational counsel in your time of need.

Sean’s practice is focused on both civil litigation and business transactions, as he strives to provide common-sense solutions to simple and complex problems during your time of need. The areas of law he practices include contract, business, corporate governance, corporate custodianship and receivership, energy, natural resources, public lands, personal injury, insurance defense, Wyoming and federal administrative, intellectual property, trade secret, probate, trust administration, construction, real estate, sports and entertainment, legalized gaming, as well as other areas of civil practice in Wyoming.


9.9 Sean Michael Larson

Professional Background

Sean attended college and played football at the University of Mary in Bismarck, North Dakota, enjoying his six years in the Bismarck area. After graduating then working for two years, Sean attended law school in Saint Paul, Minnesota, for one year before circling the wagons back to Wyoming for his final two years of law school. 

After graduating law school in 2013, Sean moved to Cheyenne to serve as law clerk to the Honorable Steven K. Sharpe of the First Judicial District Court of Wyoming. At the end of his two-year term, Sean served one year as law clerk to the Honorable Alan B. Johnson of the United States District Court of Wyoming. The mentorship provided by Judge Sharpe and Judge Johnson was invaluable and shapes his practice today.

Sean experienced numerous areas of both state and federal law while serving as a law clerk, experiencing cases concerning guardianships and conservatorships, probate, personal injury, medical malpractice, product liability, business, corporate governance, corporate custodianship, trust administration, estate litigation, energy, environment, natural resources, contract, Wyoming and federal administrative, appellate process, workers’ compensation, as well as in the areas of criminal and domestic. During his three years clerking, Sean prepared for and attended more than 20 jury trials. 

In addition to his courtroom experience, Sean is a published legal writer and focused researcher who searches for the “why” underlying the written law. In one of his law review articles, Sean urged for a shift in Wyoming law concerning a court’s assessment when a custodial parent relocates. In another law review article, Sean advocated for the Wyoming Legislature to better clarify the law concerning Wyoming search warrants for electronically stored information located in other states.

Practice Areas

  • Civil Litigation
  • Business Transactions
  • Contract & Business Law
  • Corporate Governance, Custodianship & Receivership
  • Energy, Environment & Natural Resources Law including Public Lands
  • Personal Injury
  • Insurance Defense
  • Wyoming & Federal Administrative Law
  • Probate & Trust Administration
  • Construction & Real Estate Law
  • Intellectual Property & Trade Secret
  • Sports, Entertainment & Gaming Law

Related Employment

  • Law Clerk, U.S. District Court for the District of Wyoming, 2015-2016
  • Law Clerk, First Judicial District, State of Wyoming, 2013-2015
  • Law Clerk (Externship), Wyoming Supreme Court, 2013
  • Seasonal Associate, Sherard, Sherard, Artery & Johnson, Wheatland, Wyoming, 2012-2013
  • Seasonal Associate, Lubing & Corrigan, Jackson, Wyoming 2012
  • Volunteer Research Assistant, Public Health Law Center, Saint Paul, Minnesota, 2011

Professional Leadership & Community Involvement

  • The American Inns of Court
    • Member, Tenth Circuit Advisory Committee, 2016-2017, Present
      • Continued Advisory Capacity – 2020
    • Member, The Ewing T. Kerr American Inn of Court, Cheyenne, Wyoming, 2013-Current
      • Secretary, 2015-2017
    • Representative, 2015 Celebration of Excellence, Washington, D.C.
  • American Bar Association, 2013-Current
    • Member, Section of Litigation
    • Member, Section of Environment, Energy, and Resources
      • Member, Public Land and Resources Committee
        • Vice-Chair of Electronic Communications, 2015-2018
        • Vice-Chair of Social Media, 2015-2018
        • Vice-Chair of Programming, 2018-Current
  • Federal Bar Section of the Wyoming State Bar
    • Chair, 2017-2018, 2020 – Current
    • Past Chair, 2018-2019
    • Council Member, 2017-Current
  • Wyoming Trial Lawyers Association, 2013-Current
  • Wyoming Law Review
    • Senior Staff and Comment Author 2012-2013
    • Article Author, 2016
  • SCORE Volunteer, Cheyenne Chapter
    • 2018-Current
  • National Institute of Justice & RAND Corporation, Workshop on Challenges with Digital Evidence Held in Remote Datacenters, Washington, D.C.
    • Workshop Contributor, May 2017
  • National Academy of Personal Injury Attorneys, Top 10 Under 40 in Wyoming, 2017

Education

  • J.D., University of Wyoming College of Law, Laramie, Wyoming, 2013
  • Order of the Coif
    • Natural Resource Law Club, University of Wyoming College of Law, 2011-2013
      • President, 2012-2013 and Treasurer, 2011-2012
  • B.S., English, University of Mary, Bismarck, North Dakota, 2008
    • Magna Cum Laude
    • NAIA/NCAA Division II Football, 2004-2008
      • 2007 All-Academic Team, Northern Sun Intercollegiate Conference
      • Wide Receiver & Special Teams
      • October 27, 2007 Special Teams Player of the Week

Personal Interests

Outside of work, Sean enjoys running, strength and endurance training, reading, and writing. Sean misses the thrill of high school and collegiate competition, but still competes in running events ranging from 5K to marathon distances. Sean is an avid sports fan, especially of football and baseball, and he enjoys playing fantasy sports with friends and family. Sean’s favorite time is spent with his wife, daughter, and son.

Bar Admissions

  • Wyoming State Bar, 2013-Current

Court Admissions

  • Wyoming Supreme Court
  • U.S. District Court for the District of Wyoming
  • U.S. Court of Appeals for the Tenth Circuit

Publications