Jeffrey R. Sonn is the founder and managing partner of Sonn Law Group, recognized as a premier authority in complex securities litigation, FINRA arbitration, class actions, and investor recovery matters. With over thirty years of distinguished experience, Mr. Sonn has successfully represented institutional and individual investors in high-stakes disputes involving securities fraud, broker-dealer misconduct, unsuitable investment recommendations, Ponzi schemes, and other significant financial losses.

Over the course of his career, Mr. Sonn has litigated numerous cases to successful resolution, recovering many millions of dollars on behalf of defrauded investors. His work includes significant results in securities arbitration, complex business litigation, and investor class actions, including a $50 million final judgment in Katz v. MRT Holdings, a rare merits-based outcome under the Private Securities Litigation Reform Act of 1995.

Mr. Sonn is widely regarded as a leading authority on securities fraud, Ponzi schemes, and high-profile financial misconduct, frequently serving as a sought-after legal commentator for major media outlets. He has provided expert analysis for CNBC, CBS Sunday Morning, BBC Radio, ABC, and MSNBC, and was a featured contributor for CNBC’s award-winning coverage of the Bernard Madoff Ponzi scheme, including On the Money and Scam of the Century: Bernie Madoff and the $50 Billion Heist, as well as CNBC’s American Greed.

Beyond his litigation practice, Mr. Sonn is a prolific author and lecturer on securities fraud, Ponzi scheme recovery, arbitration strategies, and investor protection. His published works encompass topics such as Ponzi scheme recovery, mortgage-backed securities, broker-dealer insolvency, arbitrator misconduct, and advanced methods for detecting securities fraud.

Mr. Sonn has held prominent leadership roles with the Public Investors Arbitration Bar Association (PIABA), the nation’s leading organization of attorneys advocating for investors in securities arbitration. Through his legal practice, media contributions, scholarly writing, and professional leadership, Mr. Sonn is dedicated to empowering investors to understand and assert their rights in the aftermath of financial misconduct.

Mr. Sonn earned his undergraduate degree from the University of Florida in 1984 and his Juris Doctor from the University of Miami School of Law in 1988, where he served as Associate Editor of the University of Miami Inter-American Law Review. He has been licensed to practice law in Florida since 1988 and is admitted to practice before all federal courts in Florida as well as the U.S. Court of Appeals for the Eleventh Circuit.

1988 — Admitted to the Florida Bar

Jeffrey R. Sonn was admitted to practice law in Florida and began building a legal career focused on securities litigation, arbitration, and investor recovery.

1996 — $2.2 Million Securities Arbitration Award

Mr. Sonn secured a $2.2 million award against PaineWebber in a securities arbitration matter, an early result that helped establish his reputation in investor recovery litigation.

2000 — $16 Million Federal Court Verdict

His firm obtained a $16 million verdict in a complex business matter in federal court, reflecting broader experience in high-stakes financial and commercial litigation.

2008–2009 — CNBC Legal Contributor and Madoff Coverage

Mr. Sonn served as a CNBC legal contributor and was featured in coverage of the Bernard Madoff Ponzi scheme, including On the Money and Scam of the Century: Bernie Madoff and the $50 Billion Heist.

2009 — $50 Million Judgment in Katz v. MRT Holdings

Mr. Sonn obtained a $50 million final judgment in Katz v. MRT Holdings, one of the rare cases under the Private Securities Litigation Reform Act of 1995 to result in a final judgment on the merits.

2011 — National Ponzi Scheme Recovery Leadership

Mr. Sonn served on the national steering committee in a major Ponzi scheme matter that resulted in a $151 million settlement for more than 1,000 investors.

2013 — $11.1 Million Citigroup Arbitration Verdict

Mr. Sonn won an $11.1 million verdict against Citigroup, further reinforcing his record in securities arbitration and investor loss recovery.

2016 — Puerto Rico Bond Investor Recoveries

Mr. Sonn helped recover millions of dollars for investors in Puerto Rico-related securities matters, continuing his work on behalf of investors harmed by complex financial products.

2017–2026 — Recognized by Super Lawyers

Mr. Sonn has been selected to Super Lawyers in securities litigation, reflecting peer recognition for his work in complex investor and financial disputes.