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Global law firm Rimon PC welcomes former federal prosecutor Jonathan Rosen as a White Collar, Regulatory, and Government Investigations Partner in Washington D.C. Office

News Jonathan Rosen Jonathan Rosen · February 08, 2021

Former AUSA and Deputy D.A. obtained first-ever FCPA conviction on alternative nationality provision

Washington, D.C. – Rimon is proud to welcome former federal and state prosecutor and experienced regulatory focused litigator Jonathan Rosen, who has won over 100 trials, as a Partner in its Washington D.C. office.

Mr. Rosen joins Rimon from Polsinelli where he was a Shareholder and co-chair of the False Claims Act Defense Group.

Prior to that, he served in the U.S. Justice Department as an Assistant United States Attorney for the District of Columbia where he notably obtained the first-ever conviction in the United States based on the alternative nationality provision of the Foreign Corrupt Practices Act (FCPA). 

Mr. Rosen also served as a Deputy District Attorney for Los Angeles County.

Mr. Rosen is a seasoned advocate who vigorously defends and advises public companies, corporate executives, and individuals in complex civil, regulatory, and criminal law enforcement investigations and litigation.

With more than 25 years of experience in government investigations,  Mr. Rosen is regularly called upon to defend clients in high-stakes matters, involving alleged violations of the FCPA, Bank Secrecy Act, complex accounting and securities issues, fraud allegations, insider trading restrictions, health care law issues, off-label drug marketing restrictions, the Federal Anti-Kickback Statute, the False Claims Act, money laundering allegations, federal criminal tax issues, asset forfeiture claims, government contracting and procurement issues, the Martin Act, antitrust price fixing, and sanctions and procurement issues. 

In addition to his public representations, Mr. Rosen is frequently retained by corporations and executive management to conduct internal investigations, provide advice during investigations, and advise clients on remedial measures, compliance programs and training.

“Rimon’s commitment to building the firm with such impressive attorneys, along with its distinguished list of clients and prestigious financial services and securities practice, really impressed me,” said Mr. Rosen.  “In today’s globalized economy, multi-jurisdictional inquiries from various government agencies arise regularly.  I am excited to apply my more than two decades of public service and private practice to help grow Rimon’s white-collar defense and government investigations practice to serve our clients within an innovative and forward-thinking culture.”

Mr. Rosen also worked as a Partner in other top law firms, including Shook, Hardy & Bacon and Mintz Levin. He also received the Department of Justice’s Director’s Award.

“Jon’s strong background in state and federal prosecution combined with his extensive experience in private practice makes him a great addition to our White Collar, Regulatory, and Government Investigations practice.  Clients of every size and type can find themselves in situations where they need discrete, knowledgeable advice related to internal and governmental issues and investigations. Mr. Rosen’s expertise will greatly enhance our ability to offer our clients support when these needs arise,” said Michael Moradzadeh, Founding Partner and CEO of Rimon.

 Mr. Rosen joins the firm’s growing White Collar, Regulatory, and Government Investigations practice along with Steven Aaron, who also recently joined the firm. Mr. Rosen will also be part of the firm’s broader Litigation practice, along with Partners including Katie Hyman, Patrick Kuehl, Jr. , Robert (Bob) Cocchia and Brian Hafter.

 Mr. Rosen graduated from Boston University Law School (J.D.) and Stanford University (B.A. with Honors, Phi Beta Kappa).


Rimon has 35 offices across five continents. The firm is widely known as being at the vanguard of legal innovation. The firm has been repeatedly recognized by the Financial Times as one of North America’s most innovative law firms. The firm’s Managing Partners were both named ‘Legal Rebels’ by the American Bar Association’s ABA Journal and have spoken on innovations in the practice of law at Harvard and Stanford Law Schools. Rimon and its lawyers have also received numerous awards for excellence, including from Best Lawyers and Chambers.