Stacy Kourlis Guillon

Stacy Kourlis Guillon

Of Counsel vCard
303.623.9222 fax
1200 Seventeenth Street
Suite 3000
Denver, CO 80202

Ms. Guillon is a member of the firm’s litigation division, where she focuses on various complex and commercial litigation matters. Prior to joining the firm, she clerked for the Honorable Timothy M. Tymkovich on the United States Court of Appeals for the Tenth Circuit and worked for the U.S. Chamber of Commerce in Washington, D.C.

Ms. Guillon in a native Coloradan and grew up on a sheep and cattle ranch near Craig, Colorado.

Professional Experience

  • Law Clerk to Judge Timothy M. Tymkovich, United States Court of Appeals for the Tenth Circuit
  • U.S. Chamber of Commerce, Manager of Communications and Special Projects
  • Marmillion + Co. Strategic Communications, Account Executive
  • The Harker School, Fourth Grade Language Arts Teacher

Memberships & Affiliations

  • National Western Stock Show, Trustee
  • Colorado Cattlemen's Agricultural Land Trust, Board Member
  • AgIndustry Leadership Council, Colorado State University College of Agricultural Sciences, Member
  • Tenth Circuit Historical Society, Colorado Vice President
  • Faculty of Federal Advocates
  • Colorado FFA Foundation, Trustee
  • American Bar Association Public Land and Resources Committee, Vice Chair Electronic Communications, 2012-2013


  • 5280 [The Denver Magazine] - "Top Lawyers" List, 2020
  • Denver Business Journal - Who's Who in Agriculture, 2019
  • Water in the West (Stanford University) - Research Assistant - Groundwater Law
  • Water and Energy Nexus: A Literature Review (2013) - Contributing author
  • Stanford Law School’s Gerald Gunther Prizes - Top grades - Energy Law and Water Law
  • Dartmouth College Honors Thesis Symposium - Featured presenter, 2006
  • Bill Lane Center for the American West (Stanford University) - Research Assistant

Other Info


J.D., Stanford Law School, 2013
M.S., Stanford University, 2013
B.A., magna cum laude, Dartmouth College, 2006

Bar Admissions

Colorado, 2013

Court Admissions

Colorado State Judicial District Courts
U.S. Court of Appeals, Tenth Circuit