Justin S. Weddle
Founder
Justin Weddle is a seasoned trial lawyer, appellate advocate, and litigation strategist with deep experience in high-stakes criminal, civil, and regulatory matters — both domestic and cross-border. He develops tailored strategies for clients facing government enforcement actions, corporate investigations, and complex appeals.
He has played key roles in some of the most high-profile and consequential matters of the past two decades, including:
- The OneCoin prosecution
- The WeBuildtheWall prosecution
- The Premium Point appeal and post-conviction proceedings
- The LIBOR criminal prosecutions
- The FIFA corruption case
- U.S. litigation related to Brazil’s Lava Jato investigation
- The KPMG–PCAOB leaks trial in the Southern District of New York
- The Supreme Court’s Lucia decision finding SEC ALJs unconstitutional
- Circuit court litigation on SEC disgorgement and Appointments Clause issues
Justin served for more than 12 years as an Assistant United States Attorney in the Southern District of New York, where he built and tried complex white collar cases. He served in the Computer Hacking and Intellectual Property section, the Major Crimes Unit, the Complex Frauds Unit, and the Securities and Commodities Fraud Task Force.
His tenure culminated in his appointment as Deputy Chief of Appeals, where he supervised briefing and oral argument before the U.S. Court of Appeals for the Second Circuit. He has personally argued eighteen cases before the Second Circuit.
From 2008 to 2010, Justin served as the Resident Legal Adviser for the U.S. Department of Justice in Bucharest, Romania, where he led cross-border law enforcement initiatives in Southeast Europe. He represented the United States in multilateral treaty negotiations establishing the Southeast European Law Enforcement Center (SELEC) and worked closely with EU institutions and European prosecutors to strengthen international cooperation.
Justin is admitted to practice in New York, Massachusetts, US District Courts (Southern District of New York, Eastern District of New York and District of Massachusetts), US Courts of Appeals (First, Second, Third, Ninth, Tenth, District of Columbia, and Federal Circuits) and the US Supreme Court.
From 2008 to 2010, Justin served as the U.S. Department of Justice’s Resident Legal Adviser in Bucharest, Romania, focusing on cross-border law enforcement cooperation and information sharing in Southeast Europe. He was the lead U.S. representative at multilateral treaty negotiations to create the Southeast European Law Enforcement Center, an international police and customs cooperation center, and worked closely with EU representatives and European prosecutors.