Celebrating 75 Years of Serving Nevada’s Legal, Business, Government, and Civic Communities

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 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 is recognized in Chambers USA: America’s Leading Lawyers for Business in Commercial Litigation. 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.” “Adam embodies a rare talent for balancing deep case law knowledge, vision for navigating a path to the desired outcome, and exceptional written and verbal communication skills.” “His ability to handle complex litigation is very important for identifying issues, and his writing, negotiation and oral skills are excellent.”

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)

Presentations and Publications

  • Author, Non-Final, Appealable Administrative Orders, Appellate Briefs, The Writ, Washoe County Bar Association, Sept/Oct 2023
  • Author, Navigating Multi-Party Appeals, Appellate Briefs, The Writ, Washoe County Bar Association, May/June 2023
  • Moderator, judges panel on Civil Practice, District of Nevada’s Federal District Conference, May 11, 2023
  • Author, A Wynn for the Nevada Gaming Commission, Appellate Briefs, The Writ, Washoe County Bar Association, Sept/Oct 2022
  • Author, The Virtual Raise It or Waive It: Preserving an Accurate Appellate Record of Remote Trial Court Proceedings, Nevada Lawyer, June 2021
  • Author, Co-operating to Reduce the International Regulatory Burden, European Gaming Lawyer, Winter 2013
  • Author, In-Room Mobile Gaming in Nevada, Casino Lawyer, Fall 2011
  • Author, 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)
  • Author, Unstable Equilibriums in the European Gambling Market, European Gaming Lawyer, Winter 2010

Pro Bono

  • 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, 2023)
  • The Best Lawyers in America – Commercial Litigation (2021-2024), Gaming Law (2021-2024), Appellate Practice (2024), Trusts & Estates Litigation (2024), and Tax Litigation and Controversy (2024)
  • Nevada Business Magazine – “Legal Elite/Top Rank Attorneys” (2020-2023)
  • Mountain States Super Lawyers Magazine –  Super Lawyer (2019-2023), Rising Star (2016-2017)
  • Vince Consul Memorial Pro Bono Award, Legal Aid Center of Southern Nevada (2021)
  • The American Lawyer – “Trailblazers West” (2021) (Attorneys who have “moved the needle in the legal industry,” are “truly agents of change,” and “made significant marks on the practice, policy and technological advancement of their practice.”)
  • “Twenty Under 40” Honoree, Reno Tahoe Young Professionals Network (2020)
  • Pro Bono Lawyer of the Year – United States District Court of Nevada

Professional Associations and Community Engagement

  • Member, Commission on the Nevada Rules of Appellate Procedure
  • Member, Appellate Litigation Section, State Bar of Nevada (past Chair)
  • Member, Lawyer Advertising Advisory Committee, State Bar of Nevada
  • Lawyer Representative, U.S. District Court, District of Nevada (2023-2025)
  • Graduate, Leadership Program, Reno + Sparks Chamber of Commerce
  • Member, Bruce R. Thompson American Inn of Court
  • Member, American Bar Association
  • Member, State Bar of Nevada
  • Member, Washoe County Bar Association
  • Member, Clark County Bar Association

Attorney News

McDonald Carano Receives Highest Number of Rankings in Chambers 2023

Chambers produces the global legal profession’s most respected and comprehensive rankings of lawyers and practice areas. Chambers researched law firms with offices in Nevada for inclusion in the 2023 edition…

Appellate Briefs: Non-Final, Appealable Administrative Orders

Adam Hosmer-Henner, a commercial litigation and appellate Partner, authored an article discussing the complexity of administrative appeals. He explains that in administrative appeals determining whether an order is final can…

23 Reno Office Lawyers Recognized in Best Lawyers® and Best Lawyers: Ones to Watch®

McDonald Carano proudly announces that 21 of our Reno office lawyers have been selected by their peers for inclusion in the 2024 edition of The Best Lawyers in America® and two…

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