Jack is the area's leading authority on media law and First Amendment matters. He has represented clients in public records disputes, access to courts, open meeting cases and a variety of defamation cases. Jack is also an experienced commercial litigator, handling contract disputes for clients in state and federal courts in Ohio and elsewhere.

Representative Matters Include:

  • 2011-1177:  State, ex rel. ESPN, Inc. v. The Ohio State University. Original Action in Mandamus
  • 2015-1222:  State of Ohio ex rel. The Cincinnati Enquirer, Scripps Media, Inc. d.b.a. WCPO-TV, The Associated Press, Raycom Media d.b.a. WXIX-TV, Hearst Corporation d.b.a. WLWT-TV, and Sinclair Media III, Inc. d.b.a. WKRC-TV v. Joseph T. Deters, Hamilton County Prosecuting Attorney

  • 2017-0908:  State, ex rel. The Cincinnati Enquirer, a Division of Gannett GP Media, Inc. v. The Honorable Leslie E. Ghiz. Original Action in Mandamus and Prohibition

  • 2017-1618:  State, ex rel. The Cincinnati Enquirer, a Division of Gannett GP Media, Inc. v. The City of Cincinnati Police Department. Original Action in Mandamus
  • 2018-0506:  State of Ohio ex. rel. The Cincinnati Enquirer, a Division of Ganett GP Media, Inc. v. Honorable Donald E. Oda, II. Direct Appeal (Case Originating in Court of Appeals)

  • 2021-0203: State ex rel. The Cincinnati Enquirer v. Hon. Ronald P. Forsthoefel. Original Action in Mandamus and Prohibition

  • Sandmann vs. The New York Times Company, Case No. 2:20-cv-00023-WOB-CJS

  • Navarro v. Procter & Gamble Company et. al., Case No. 1:17-cv-00406-DRC

  • AtriCure, Inc. v. Meng et. al., Case No. 1:19-cv-00054-MRB

  • Tara Blessing, et al v. NBCUniversal Media, LLC, Case No. 21-5084

Get in Touch

John C. "Jack" Greiner

201 E. Fifth St., Suite 1420
Cincinnati, OH 45202

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Commercial Litigation


Media Law/First Amendment

Public Access to Government Records

Access to Meetings of public Bodies

Access to Courts



U.S. District Court for the Southern District of Ohio

Sixth Circuit Court of Appeals

United States Supreme Court

Ohio Super Lawyer

Cincinnati Leading Lawyers

Best Lawyers in America

Ohio Society of Professional Journalists – Best Blog

Ohio Society of Professional Journalists – First Amendment Award

Ohio Society of Professional Journalists – Best Defense of First Amendment Award

Cincinnati Chapter of Society of Professional Journalists – Lifetime Achievement Award

Ohio Associated Press Media Editors -- First Amendment Award

American Bar Association

Federal Bar Association

Ohio State Bar Association

Cincinnati Bar Association

University of Notre Dame Law School, 1983

Note Editor Law Review


Miami University, B.S., Political Science/Economics, 1980


CET Board of Trustees

Talbert House Chair of Fatherhood Committee Luncheon

FBA Pledge Committee

University of Cincinnati Law Review "Public Access to Ploice Body Camera Footage – It's Still Not Crystal CLEIR"


Columnist Cincinnati Enquirer


Contributor to "Spitball" Magazine


Presenter – CBA annual Baseball and the Law Seminar


Presenter – CBA Bench Bar Media Conference