Adam Hosmer-Henner


Bar Admissions
  • California
  • Nevada
  • New York
  • J.D., Harvard Law School, 2008
  • B.S. & B.A., Duke University, 2005
Bar Admissions
  • California
  • Nevada
  • New York
  • J.D., Harvard Law School, 2008
  • B.S. & B.A., Duke University, 2005

Professional Background

Adam Hosmer-Henner represents Nevada’s largest companies and entities in high-profile cases throughout the state. He is Chair of the Appellate Practice Group at McDonald Carano and has handled over forty appeals at the Nevada Supreme Court and argued multiple cases before the Court.

Mr. Hosmer-Henner represents his clients in litigation and arbitration involving a wide range of complex matters and focuses on health care, gaming, antitrust and unfair trade practices, intellectual property, trusts and estates, and commercial torts.

Mr. Hosmer-Henner previously worked in the Antitrust and Competition Department of Skadden, Arps, Slate, Meagher & Flom in New York. He also worked as a legal advisor for the Remote Gambling Association in Brussels, Belgium where he counseled the association and its members on regulatory, tax and competition issues affecting the European online gambling sector.


Representative Matters

Renown Health

  • Prime Healthcare Services – Reno, LLC v. Hometown Health Providers Insurance Company, Inc. et al., Case No. 3:21-c-00226 (District of Nevada)
  • Lewis v. Renown Regional Medical Center, Inc., Case No. 74300 (Nevada Supreme Court)
  • Turner v. Renown Regional Medical Center, Inc., Case No. 77312 (Nevada Supreme Court)

Caesars Entertainment Corp.

  • Cabral v. Caesars Entertainment Corp., Case No. 78580 (Nevada Supreme Court)
  • Artman v. Eldorado Resorts, Inc., Case No. 89879 (Nevada Supreme Court)

Governmental and Administrative Cases

  • Fair Maps Nevada et al. v. Cegavske et al., Case No. 3:20-cv-00271 (District of Nevada)
  • Jackson v. Fair Maps Nevada PAC, Case No. 80563 (Nevada Supreme Court)
  • Washoe County School District v. Washoe County, Case No. 83592 (Nevada Supreme Court
  • Schmidt v. Kieckhefer, Case No. 66528 (Nevada Supreme Court)
  • Hyatt v. Yee (California Franchise Tax Board, Case No. 15-15296 (Ninth Circuit)


  • A Wynn for the Nevada Gaming Commission, Appellate Briefs, The Writ, Washoe County Bar Association, Sept/Oct 2022
  • The Virtual Raise It or Waive It: Preserving an Accurate Appellate Record of Remote Trial Court Proceedings, Nevada Lawyer, June 2021
  • Co-operating to Reduce the International Regulatory Burden, European Gaming Lawyer, Winter 2013
  • In-Room Mobile Gaming in Nevada, Casino Lawyer, Fall 2011
  • Preventing Game-Fixing: Sports Books as Information Markets, 14 Gaming L. Rev. 31 (2010) (Shannon Bybee Award for outstanding paper on a subject in the field of gaming law)
  • Unstable Equilibriums in the European Gambling Market, European Gaming Lawyer, Winter 2010

Pro Bono

  • Pro Bono Lawyer of the Year – United States District Court of Nevada
  • Nevada Supreme Court – Pro Bono Committee
  • U.S. District Court for the District of Nevada – Pro Bono Committee
  • Lead Class Counsel – In re: HCV Prison Litigation, Case No. 3:19-cv-00577-MMD-CLB (U.S. District of Nevada)
  • Paliotta v. State, Dept. of Corrections, Case No. 66664 (Nevada Supreme Court)
  • Carone v. Div. of Indus. Relations, Case No. 70718 (Nevada Supreme Court)
  • Church v. Washoe County, Case No. 71884 (Nevada Supreme Court)
  • Office of Military Legal Assistance – Volunteer
  • Lawyer in the Library – Volunteer
  • Project Salute – Volunteer

Awards and Recognition

  • Northern Nevada Business Weekly, Best In Business awards – “Up & Coming Business Person” (2022)
  • Chambers USA: America’s Leading Lawyers for Business – “Up and Coming” in Commercial Litigation (2022). Clients describe Adam to Chambers as “Adam is an extremely talented and hard-working attorney.” “He is outstanding in every sense. He’s super smart, a great lawyer and likes to win.”
  • The Best Lawyers in America – Commercial Litigation and Gaming Law (2021-2023)
  • Nevada Business Magazine – “Legal Elite/Top Rank Attorneys” (2020-2022)
  • Super Lawyers Magazine “Mountain States Rising Star” – Appellate, Business Litigation, Estate and Trust Litigation (2016-2017, 2019-2022)
  • Vince Consul Memorial Pro Bono Award, Legal Aid Center of Southern Nevada (2021)
  • The American Lawyer – “Trailblazers West” (2021)
  • “Twenty Under 40” Honoree, Reno Tahoe Young Professionals Network (2020)

Professional Associations and Community Engagement

  • Commission on the Nevada Rules of Appellate Procedure
  • Past Chair of the Appellate Litigation Section of the State Bar of Nevada
  • State Bar of Nevada, Lawyer Advertising Advisory Committee
  • Leadership Reno-Sparks – Graduate
  • Bruce R. Thompson American Inn of Court
  • American Bar Association
  • State Bar of Nevada
  • Washoe County Bar Association

Attorney News

1st Place Law Firm and 1st Place Most Philanthropic Company in Best In Business Contest

Northern Nevada Business Weekly announced the results of its 2022 Best In Business contest and McDonald Carano LLP received the highest number of votes in two categories – Law Firm…

Nevada Supreme Court’s Non-Intervention Principle in NGC Proceedings

In an article titled “A Wynn for the Nevada Gaming Commission,” Adam Hosmer-Henner explains the Nevada Supreme Court’s general principle of non-intervention in Nevada Gaming Commission proceedings. Adam’s article is…

Up & Coming Business Person Recognition in Best In Business Contest

Northern Nevada Business Weekly announced the results of its 2022 Best In Business contest and two McDonald Carano attorneys received the two highest numbers of votes in the “Up &…

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