Oleg Shik represents individuals and institutions in criminal and civil matters, with a focus on white collar criminal defense, internal investigations, regulatory enforcement, and complex civil litigation.

Oleg has represented clients in connection with investigations conducted by the U.S. Department of Justice (DOJ), the Financial Industry Regulatory Authority (FINRA), the New York State Department of Financial Services (DFS), and foreign regulators. He has also represented clients in investigations conducted in response to internal whistleblower complaints. Oleg has experience in matters involving allegations of bribery, money laundering, violation of economic sanctions, and workplace misconduct.  His pro bono work has involved assisting those seeking legal authorization in the United States, as well as incarcerated individuals applying for post-conviction relief.