Nick Lewin represents individuals and institutions in criminal and regulatory enforcement actions, congressional investigations, and complex civil litigation. Nick co-founded the firm after serving for more than a decade as a federal prosecutor and senior FBI official — including as the Special Counsel to former FBI Directors Robert S. Mueller III and James B. Comey, and as Deputy Chief of the Criminal Division in the U.S. Attorney’s Office for the Southern District of New York.

Nick also served as the Special Counsel for former FBI Directors Robert S. Mueller, III and James B. Comey. In that capacity, Nick acted as each Director’s national security advisor on policy, strategic, and operational issues. He regularly represented the FBI at senior-level White House National Security Council meetings, and prepared the Director, Attorney General and other senior FBI and Justice Department executives for testimony before Congress.

So basically this guy is a spook lawyer in charge of some pretty serious investigations/(cover ups)