Dan Stein

Dan Stein is Head of Weil’s global White Collar Defense, Regulatory and Investigations practice. A former federal prosecutor, Dan has more than 20 years of experience in regulatory enforcement, government and internal investigations, white collar criminal defense, and complex civil litigation. He counsels financial services firms and other public and private companies, as well as individual clients, in connection with a broad range of complex situations, including U.S. Securities Exchange Commission and Financial Industry Regulatory Authority investigations and enforcement actions.

A first-chair trial lawyer, Dan has been recognized for several years as a leading white collar and investigations lawyer by Chambers USA, where clients have called him “a really talented and dynamic thinker who is very skilled in a number of areas,” “a fantastic advocate who has the ability to put the client at ease and is always on top of every detail,” “an amazing lawyer,” and “really strategic and willing to take positions and push the envelope on matters.” He likewise has been recommended by Legal 500 US, where clients have commented: “Dan Stein is the reason we use the firm. His professional experience and him personally are the attractions.” Additionally, Lawdragon 500 selected him to its 2025 lists of “Leading Litigators in America” and “Global Leaders in Crisis Management.”

Dan is frequently engaged by clients facing high-stakes investigations in headline matters. For example, he served as lead trial counsel for an engineering firm ensnared in the Flint Water Crisis, advised a global financial institution in connection with the investigation conducted by Special Counsel Robert Mueller, and defended an individual charged in connection with the Varsity Blues college admissions scandal. Dan previously served for a decade in the U.S. Attorney’s Office for the Southern District of New York (S.D.N.Y.), with two terms of duty. Most recently, he was Chief of the S.D.N.Y.’s Criminal Division, where he oversaw all of the S.D.N.Y.’s criminal prosecutions and investigations, including those involving securities fraud, insider trading, public corruption, foreign corrupt practices, criminal tax offenses, money laundering, economic sanctions, cybercrime, narcotics trafficking, violent crimes, and terrorism. He assumed that position in July 2015, after serving as Chief Counsel to the U.S. Attorney since July 2014.