“Known for his work with casinos and gaming manufacturing companies, who regularly entrust him with complex M&A and regulatory mandates." - Chambers USA

Biography – View PDF Bio


Bar Admissions

  • Nevada, 2001
  • Colorado, 2000
  • Mississippi, 1994
  • Iowa, 1990

Civic Involvement

  • Irish Network Nevada (2013-present)
    • Founding Board Member
  • Irish Network USA (2017-present)
    • Regional Vice President (California, Nevada, Oregon, Washington)
  • CelticFest Mississippi, Jackson, MS board member and past president (1993-1997)


  • Martindale-Hubbell®
    • AV®-Preeminent™ Peer Review Rated
  • Best Lawyers in America®
    • Lawyer of the Year, Gaming Law (Denver), 2020
    • Gaming Law, 2009-2020
  • Super Lawyers®
    • Mountain State Super Lawyers, “Top 100” – Gaming, 2007-2018
  • Chambers USA: America's Leading Lawyers for Business
    • Gaming & Licensing, 2008-2017

Education & Honors

  • Drake University Law School, J.D., 1989
  • Drake University, M.A., Journalism, 1989
  • Drake University, B.A., Political Science/Religion, 1986


  • Sean McGuinness practices in the firm’s Gaming Industry Team. His practice focuses primarily on commercial gaming and sports betting matters in Nevada, Colorado, Iowa and Mississippi, as well as tribal gaming matters. He also has experience with gaming bankruptcy matters. Sean also represents banking clients with respect to public financing transactions in the State of Nevada.
  • Sean has represented clients with licensing and regulatory matters before the Nevada Gaming Control Board, the Nevada Gaming Commission, the Colorado Division of Gaming, the Colorado Limited Gaming Control Commission, the Iowa Racing & Gaming Commission, the Mississippi Gaming Commission and the National Indian Gaming Commission. He has also participated in gaming related matters in other jurisdictions such as California, Canada, Hungary, Illinois, Kansas, Louisiana, Maryland, Michigan, Missouri, New Mexico, North Dakota, Oklahoma, Switzerland, Tinian and Washington. Sean has represented clients in gaming bankruptcy matters, including the Herbst Gaming, Station Casinos, Fitzgeralds Gaming Corporation, the Aladdin Hotel and Casino, and the Resort at Summerlin proceedings.
  • Sean is frequently asked to comment on the Commercial Gaming industry. Sean appeared on Nevada Newsmakers in November 2016 to discuss recent Gaming industry trends. He is also a regular pundit on the program. In 2011, Sean was featured in a Q&A with In Business Las Vegas (now Vegas Inc.) where he provided an overview of his practice and the Gaming Industry in Nevada.
  • Prior to joining the firm, Sean practiced gaming law for 15 years at a law firm in their Reno, Las Vegas and Denver offices. Sean was Vice President and General Counsel for The Resort at Summerlin, which was owned by Swiss Casinos (1997-2001), and had a private gaming law practice in Mississippi (1994-1997) and served as Compliance Director for the Mississippi Gaming Commission (1992-1993). Sean got his start in the gaming industry as a law clerk for the Iowa Racing & Gaming Commission.

Papers, Presentations, & Publications

  • ​Presentations
  • ​Speaker, “Sports Betting: Latest Updates on US Regulation,” March 20, 2020.
  • Panelist, “Conflicting Ethics,” International Masters of Gaming Law Masterclass® at G2E, Las Vegas, Nev., October 2019.
  • ​Speaker, “The Highs and Lows of Marijuana Legalization Revisited,” International Association of Gaming Advisors, Half Moon Bay, Calif., June 2019.
  • Panelist, “The Advertising of Games of Chance in Europe,” International Maters of Gaming Law Conference, New Orleans, La., March 2019.
  • Panelist, “The Increasing Relevance of Technology in Regulation,” International Masters of Gaming Law Masterclass®, London, England, February 2019.
  • Panelist, “Follow the Money (New Payment Technologies/Blockchain),” National Council of Legislators from Gaming States, New Orleans, La., January 2019.
  • Panelist, “Gaming Law Basics for Business Lawyers,” American Bar Association Business Law Section, Austin, Texas, September 2018.
  • Panelist, "General Data Protection Regulations," International Masters of Gaming Law Conference, Prague, Czech Republic, September 2018.
  • More...