Justin B. Perri







1201 Broadway
9th Floor
New York, NY 10001
P: +1 (212) 779 3070 x 102

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Fordham University School of Law, J.D., 2002, Notes and Articles Editor, Fordham Intellectual Property Law Journal

Emory University, B.A., History, 1999



New York

New Jersey (inactive)

District of Columbia (inactive)

US District Court for the Eastern District of New York

US District Court for the Southern District of New York

US District Court for the District of New Jersey

US Court of Appeals for the Second Circuit

US Court of Appeals for the Third Circuit

United States Supreme Court

Mr. Justin B. Perri is a multifaceted and seasoned litigator with over 10 years’ experience in the Litigation Department of Steptoe & Johnson. Justin played a lead role in the national defense of complex multi-state litigation, crafting both defensive and offensive strategies for a Fortune 50 company. He also served as counsel for a wide range of corporate and institutional clients in federal and state courts across the nation at both the trial and appellate level, and is particularly well versed with best practices to manage the risk of litigation. In 2017, Justin's trial team at Blackstone secured two plaintiffs' verdicts on behalf of victims of financial fraud.

Justin has extensive experience in protecting his clients' domain spaces from infringers either seeking to capitalize on a client's trademark or mounting a phishing campaign against the client.

Justin’s national security and appellate experience includes successfully representing, before the US Supreme Court, American prisoners of war, their family members, and members of the media, who were tortured in Iraq during the 1991 Gulf War. The cases against Iraq were before the Court of Appeals for the District of Columbia and part of a 2009 decision by the Supreme Court of the United States. Justin’s clients were among those who successfully resolved their claims against Iraq through a state-to-state agreement in 2011.

Mr. Perri is licensed to practice in the States of New York and New Jersey (inactive), as well as the District of Columbia (inactive). He is admitted before U.S. Supreme Court, the U.S. Courts of Appeals for the Second, Third, and D.C. Circuits, and the U.S. District Courts for the Southern and Eastern Districts of New York and the District of New Jersey.


Privacy & Data Security Experience

► Serve as privacy outside counsel for multiple data-intensive companies including global technology, consumer, and media and entertainment companies
    ► Consulted on privacy compliance, defamation, insurance coverage, and risk mitigation
    ► Review, assess, and strengthen terms of service, privacy and cyber risk policies, and incident response plans
► Online brand enforcement for insurance, global retail, and healthcare companies, including enforcement via takedowns and Uniform Domain-Name Dispute Resolution Policy (UDRP) proceedings
► Secured plaintiffs' verdicts on behalf of victims of financial fraud
► Manage breach notification processes for foreign and domestic clients; analyze the notification standards for the 50 states and countries worldwide
► Negotiate / draft MSAs, SOWs, NDAs, employment and separation agreements for companies in network security, advertising, sentiment search, and information services companies
► Negotiate settlements over intellectual property rights, including telecom patents, developer code, and designs of luxury menswear
► Carried out and produced comprehensive data protection compliance assessments for Fortune 500 financial data services providers

Published Appellate Decisions

  • Ahn v. Kang, 192 A.D.3d 994 (2d Dep't 2021) (upholding jury verdict, rejecting defendant's argument that the trial court should have invoked in pari delicto and instruct the jury with an adverse inference charge)
  • Parietti v. Wal-Mart Stores, Inc., 140 A.D.3d 1039 (2d Dep't 2016) (granting Wal-Mart's motion for summary judgment against plaintiff in a matter involving a slip-and-fall in a Wal-Mart store)
  • Blumenstein v. Waspit Group, Inc., 140 A.D.3d 620 (1st Dep't 2016) (unanimous reversal of lower court entitling client to immediate judgment under CPLR 3213 on a valuable promissory note used to secure a loan to a technology company)