Diana Warshow is an accomplished litigator and negotiator who focuses her practice on Defamation Law, Business Litigation, and Higher Education Disciplinary Misconduct and Due Process. Diana’s victories inside and outside of the courtroom have cemented her reputation as a top ranked and highly sought-after media & entertainment attorney. As an accomplished advocate for due process rights, Diana has successfully represented defamed, falsely accused, and wrongfully penalized clients on both the plaintiff and defense side. She handles all phases of investigation and litigation, as well as disciplinary processes and negotiations. 

As a skilled defamation attorney, Diana represents clients who have been defamed or have been accused of communicating defamatory content. She has obtained many favorable resolutions for her clients in libel and slander claims in Federal and State Courts throughout the country against worldwide media companies, major publications, tech companies, blogs, and social media sites. Diana regularly provides pre-publication counseling, ensuring that false information about her clients never get published. She also works to obtain retractions, corrections, and apologies for false and damaging publication.

Diana is often retained by filmmakers, producers, designers, publicists, authors, and talent to protect their ideas and interests. With experience and understanding of media and privacy laws and protections, Diana works to minimize reputational harm, prevent inaccurate report, unlawful disclosure of trade secrets, and defend rights of publicity. 

Diana’s representation of students and faculty in high school, college, and post-graduate disciplinary proceedings has garnered praise in the field, as she has established a significantly high success rate. Diana has a comprehensive knowledge of the process and is able to expertly counsel her clients through otherwise overwhelming circumstances. Her work focuses on defending students’ right to due process and pursuing civil lawsuits in connection with mistreatment of students and faculty. 

Business clients turn to Diana for counsel on corporate and commercial matters. She regularly drafts, negotiates, and advises on contracts and agreements in the areas of licensing rights, non-disclosure and confidentiality restrictions, and intellectual property matters. She works with clients to resolve a range of partnership and contract issues through litigation, mediation, and private negotiations.

Diana is a columnist for Above the Law and has written articles on conflict resolution and college disciplinary cases. 

In her free time, Diana enjoys spending time with her husband and children and serving as the President of the Paskack Junior Woman’s Club.

Below is a list of practice areas in which Diana R. Warshow specializes:

Business Litigation

Corporate Transactions and Dissolutions


  • Benjamin N. Cardozo School of Law, J.D.; member, Cardozo Journal of Conflict Resolution
  • Lehigh University, B.A., cum laude


  • Bars
    • New York
    • New Jersey
    • Courts
      • U.S. District Court – Southern District of New York
      • U.S. District Court – New Jersey
  • Member of New York City Bar Association
  • Member of Bergen County Bar Association
  • Selected to the New York Super Lawyers List, Rising Star, 2018-2022
  • Selected to the New Jersey Best Lawyers for Families, 2020-2022


Nungesser v. Columbia University, 244 F. Supp. 3d 345 (S.D.N.Y. 2017) – Successfully negotiated a settlement with Columbia University, on behalf of a student who had been the subject of a defamatory and harassing campaign on campus. 

Sprecher v. Thibodeau, 2018 N.Y. Slip Op. 32205 (N.Y. Sup. Ct. 2018) Successfully defended veteran publicist against claims of defamation in the high-profile jury trial associated with the Broadway musical Rebecca. 

Represented and advised the only two students at Princeton University to have decisions reversed on appeal, per Princeton’s published data. 

Successfully negotiated for the removal of defamatory content on Facebook, Instagram, Twitter, Yelp, Glassdoor.com, Change.org, and numerous blogs and websites. 

Has had a 90%+ success rate in representation of students in disciplinary proceedings at schools around the country. 

Negotiated contracts for television, literary, and film rights, as well as for start-up and large companies in the industries of real estate, pharmaceuticals, finance, and consumer goods and services.