Evan served as an assistant U.S. Attorney in the District of Maryland, from 2012 to 2017, where he led the Maryland Financial Crimes Task Force, and prosecuted a variety of criminal and civil cases involving asset forfeiture, money laundering, fraud, tax, and bank secrecy act violations. From 2015 to 2017, Evan served as chief of the Asset Forfeiture and Money Laundering Section of the U.S. Attorney's Office, where he had statewide responsibility for overseeing federal asset forfeiture and money laundering matters.
Prior to his time as an assistant U.S. Attorney, Evan was an associate at a law firm in Washington, DC, where he represented corporations and individuals in investigations by the Department of Justice, Securities and Exchange Commission, Congress, and the Food and Drug Administration.