Pence and MacMillan LLC

M. Gregory Weisz, P.C.

M. Gregory Weisz (Greg)

M. Gregory Weisz

Greg Weisz, attorney and a member of the Wyoming State Bar since 1995, provides services in general civil litigation, business and corporate organizations, administrative law, real estate and easement law, water law, business entity litigation, and representation of governmental and institutional clients. Greg’s practice has allowed him to represent a wide variety of institutional, corporate, and governmental entities on issues related to liability exposure, risk management, taxing authority, governance, and compliance in Cheyenne and throughout the state of Wyoming. Additionally, he has extensive experience in HIPAA compliance, insurance coverage, land use regulation, and natural resources law.

Admitted to Bar:

  • 1995, Wyoming
  • 1995, Colorado
  • 1995, United States District Court for the District of Wyoming
  • 1995, United States District Court for the District of Colorado
  • 1995, United States Court of Appeals for the Tenth Circuit
  • 1995, United States Court of Federal Claims
  • 2020, United States Supreme Court



  • University of Wyoming (J.D., with Honor, 1995)
  • Colorado State University (B.S., Natural Resources Management, with High Distinction, 1985)


Practice Areas:

  • Civil Litigation
  • Corporate Law
  • Real Estate
  • Practice before state and local government regulatory agencies
  • Easements
  • Institutional Law
  • Natural Resources


Professional Associations:

  • SCG Legal, Inc.
  • Wyoming State Bar


Civic and Community Involvement:

  • Cathedral Home for Children
  • Rotary Club of Cheyenne
  • Presbyterian Church (USA)
  • National Rifle Association