John "Sean" Jennings


PHONE 303-628-3636
  • Biography
  • Legal Experience
  • Insights
  • Presentations & Publications
  • Memberships
  • Community Involvement
  • Media
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Sean Jennings is a regulatory attorney at Ireland Stapleton Pryor & Pascoe, PC. He represents businesses in matters involving regulatory compliance, government relations, and corporate matters. His practice includes advising clients on licensing, permitting, zoning, compliance, and government enforcement actions, and investigations. Sean works with businesses and organizations in diverse sectors such as food and beverage, cannabis, hemp/CBD, transportation, gaming, energy, public utilities and short-term rentals. He represents clients at hearings before state and local government agencies, boards and commissions, and elected councils. He also assists businesses with corporate transactions, contracts and intellectual property matters.

Sean has served on rulemaking committees and working groups for the State of Colorado and the City of Denver. Previously, he was the hearings manager for the City of Denver’s Department of Excise and Licenses, where he managed the City’s administrative hearings process for business licenses and conducted public hearings. During law school, he was the Executive Editor of the Villanova Law Review.



  • Colorado


  • J.D., Villanova University School of Law, 2011, cum laude
  • B.A., Michigan State University, 2008, with Honors, Phi Beta Kappa

Honors & Awards

  • Villanova Law Review, Executive Editor
  • Recipient of Villanova Law Review Scribes Award for Legal Writing & Editing
  • Recipient of Best First-Year International Law Brief Award 2009
  • Recipient of Best First-Year Memo Award 2008
  • “New Sports Betting Businesses: Rules and Regs for Operating in Colorado,” July 6, 2020
  • “Relaxed Alcohol Regulations Supporting the Restaurant Industry During COVID-19,” March 21, 2020
  • “Bankruptcy and State Alternatives for Marijuana Business,” in September 7, 2018
  • “Current Topics in Colorado’s Regulatory Landscape,” in 92 Denver Univ. Law Review Online 183 (2015)
  • “Skiing Close to the Edge of Trademark Law: The Enforceability of Geographically Descriptive Marks in Vail Associates v. Vend-Tel-Co.,” in 55 Villanova Law Review 205 (2010)
  • Marijuana and the Non-Profit Industry, at Community Resource Center Roundtable, 2019
  • Hospitality Law, at Colorado Hotel & Lodging Association Conference, 2016
  • Regulatory Update, at Recreational Marijuana CLE, 2015
  • Navigating the Agencies, at Alcohol Beverage Law CLE, 2015
  • Colorado Marijuana Licenses, at Recreational Marijuana CLE, 2014
  • Colorado Bar Association
  • Denver Bar Association
  • Downtown Denver Partnership, Retail Council Member, Downtown Denver Leadership Program
  • Colorado Restaurant Association, Government Affairs Committee Member
  • WorldDenver, Board Member and Board Secretary
  • University of Denver Law School Professional Mentoring Program
  • Brother Rice Colorado Alumni Committee Member
See all of John's Community Involvement