Jenner & Block

Katya Jestin counsels companies and executives in criminal, regulatory, and congressional investigations, including representing clients before the United States Department of Justice, the Securities and Exchange Commission, and the U.S. Senate Permanent Subcommittee on Investigations.  She also conducts internal investigations on behalf of corporate clients, provides counsel to senior management on FCPA and other compliance issues, and served as counsel to the Examiner in the Lehman Brothers bankruptcy examination.

Ms. Jestin’s recent engagements have included:

  • Representing an international law firm in a government investigation resulting in no charges.
  • Leading an internal investigation of a mortgage lender in connection with a Department of Justice fraud investigation.
  • Serving as national counsel to a group of consumer installment lenders and loan servicers facing civil litigation and regulatory enforcement actions throughout the country, including a first-of-its-kind lawsuit brought by the Consumer Financial Protection Bureau (CFPB).
  • Representing executives of global financial institutions in connection with multiple money laundering and OFAC investigations by banking regulators, the Department of Justice and the New York County District Attorney’s Office.
  • Representing an individual in connection with an accounting fraud investigation in the Southern District of New York.
  • Defending a hedge fund CFO in the Southern District of New York and before the Securities and Exchange Commission.
  • Representing executives before the United States Senate Permanent Subcommittee on Investigations in a money laundering and terrorist financing investigation.
  • Defending individuals in connection with a Department of Justice probe into municipal bond bid rigging practices.
  • Representing an individual witness in connection with an internal investigation and prosecution for securities fraud.
  • Representing a company in connection with federal criminal proceedings against former employees that defrauded the company.
  • Pro bono representation of criminal defendants in the Southern District of New York, including obtaining a complete dismissal of all charges against one defendant.

Ms. Jestin is a member of the firm’s White Collar Defense and Investigations Practice. She also serves on the firm's Policy Committee and is co-chair of the firm's Hiring Committee.

Ms. Jestin joined Jenner & Block after serving as an Assistant United States Attorney and a supervisor in the Criminal Division of the Eastern District of New York, where she was involved in investigations, prosecutions and trials involving fraud, money laundering and other white collar offenses.  She also successfully prosecuted the leadership of three of the five La Cosa Nostra organized crime families.  She was co-counsel in the RICO prosecution of Gambino boss Peter Gotti and 16 co-defendants for labor racketeering, fraud and corruption, resulting in the conviction of all defendants. 

Ms. Jestin is the recipient of The Department of Justice Director’s Award for Superior Performance as an Assistant United States Attorney. 

Since joining the firm, Ms. Jestin has been awarded the 2012 Associates Committee Mentoring Award and the 2012 Albert E. Jenner Pro Bono Award.