Helping People in the Heart of Wyoming

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Attorney Marshall Keller

Marshall E. Keller

Trial Attorney, Founder
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Overview

About Marshall E. Keller

Raised in Montana and Oregon, Marshall  E. Keller joined the U.S. Navy in 1991. He went on to become a Navy SEAL and served with SEAL Team Three.

After completing his active military service, Marshall earned a degree in Geological Engineering in 2001. His professional career took him all across the West, working for mining operations in Idaho, Nevada, and Wyoming.

In 2010, Marshall was driven by his continued commitment to service to re‑enlist with the Navy Reserves as a SEAL. He mobilized two more times before retiring in February 2025.

Marshall entered law school in 2017 and obtained his law license in 2020.

Marshall has leased land to raise livestock and is an avid outdoorsman who enjoys hunting, fishing, hiking, biking, and camping. This has helped him understand the concerns that the people of Wyoming face, whether they’re someone who comes to the law firm for help or just a friendly neighbor.

Marshall Keller has lived in Thermopolis with his wife and children since 2020.

Education

  • University of Wyoming College of Law
    Juris Doctor (J.D.)
  • Montana Technological University
    Bachelor of Science (B.S.) –  Geological Engineering

Professional Affiliations

  • Wyoming State Bar

Bar Admissions

  • Wyoming