O’Melveny Welcomes Top Former New York Federal Prosecutor Rebecca Mermelstein

FOR IMMEDIATE RELEASE

NEW YORK—Nov. 1, 2022—O’Melveny announced today that Rebecca Mermelstein, a former Assistant U.S. Attorney in the Southern District of New York and Co-Chief of the General Crimes Unit, has joined the firm’s New York office as a partner in its White Collar Defense & Corporate Investigations Practice. She will advise corporate and individual clients on complex white collar matters, including regulatory actions, internal investigations, and compliance initiatives.

Mermelstein served as a federal prosecutor for 12 years, including four years on the Securities and Commodities Fraud Task Force and three years with the Violent and Organized Crime Unit. Her extensive experience includes handling and supervising more than 1,000 cases involving securities fraud, insider trading, accounting fraud, market manipulation, Ponzi schemes, public corruption, money laundering, human trafficking, and sex crimes. She has also conducted 12 multi-defendant white collar criminal trials, and has briefed or argued more than a dozen appeals in the Second Circuit.

Before entering government service, Mermelstein was an associate at a large global law firm, representing companies, hedge funds, private equity firms, and financial institutions in internal and government investigations, including those pursued by foreign regulators.

“We are delighted to welcome Rebecca to O’Melveny. She is a proven leader and an accomplished litigator with impressive trial prowess. Her experience will serve our clients well, particularly those in the financial services sector,” said O’Melveny Chair Bradley J. Butwin.

“I am thrilled to join O’Melveny’s White Collar Group and work alongside such a talented team of lawyers who are at the top of their game,” Mermelstein said. “Over the years, I’ve been impressed by O’Melveny’s continued prominence. The firm’s record of success, combined with its collaborative culture, make it a perfect fit for me.”

Mermelstein bolsters O’Melveny’s renowned White Collar Defense & Corporate Investigations Practice, which has recently added several high-profile lawyers from the public sector, including:

• AnnaLou Tirol, former Deputy Director of the U.S. Department of the Treasury’s Financial Crimes Enforcement Network (FinCEN), who joined the firm in October; and
• Sid Mody, former federal prosecutor in the National Security, Cybercrime, and Money-Laundering Division of the U.S. Attorney’s Office for the Northern District of Texas, who joined the firm in July.

Mermelstein earned her J.D. from Harvard Law School and her B.A. from Columbia University.

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