“Dan Stein is the reason we use the firm. His professional experience and him personally are the attractions.”Legal 500 USA 2020
Dan Stein is a partner in Mayer Brown's New York office and a member of the Litigation & Dispute Resolution practice. He leads the firm’s global Regulatory & Investigations group and is a co-leader of the White Collar Defense & Compliance group. Dan focuses his practice on representing and counseling financial services firms. He has extensive experience in regulatory enforcement, government and internal investigations, white collar criminal defense and complex civil litigation. He counsels corporate and individual clients in a range of complex issues, including US Securities Exchange Commission and Financial Industry Regulatory Authority investigations and enforcement actions. Prior to joining Mayer Brown, Dan was Chief of the Criminal Division for the United States Attorney’s Office for the Southern District of New York (SDNY). He assumed that position in July 2015, after serving as Chief Counsel to the US Attorney since July 2014.
Dan's decade-long career with the US Attorney’s Office in New York included two terms of duty. He first joined in 2003, where, as an assistant US attorney, he investigated and prosecuted cases involving a wide range of federal crimes, including those involving companies in the financial services industry. In this role, he represented the United States in several significant criminal public corruption cases. From 2009 to 2011, he served as chief of the office’s Public Corruption Unit, where he was the principal trial counsel in more than a dozen criminal trials and argued numerous appeals in the US Court of Appeals for the Second Circuit.
In 2014, Dan rejoined the US Attorney’s office, serving as chief counsel to the US attorney before stepping into his most recent role, where he oversaw all of the SDNY'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.
Between stints in the SDNY, Dan spent several years in private practice, where he handled criminal and regulatory matters for a number of major financial institutions and other clients.
Earlier in his career, Dan clerked for the Honorable Leonard B. Sand of the United States District Court for the Southern District of New York. He earned a JD from Yale Law School and graduated Phi Beta Kappa from Columbia University.
Phi Beta Kappa
Yale Law School, JD
- US Court of Appeals for the Second Circuit
- US Court of Appeals for the Third Circuit
- Law360 White Collar Editorial Advisory Board