Mark Pomerantz was born in Brooklyn and received a BA from Harvard College in 1972 and a JD from the University of Michigan Law School in 1975. He worked as a federal prosecutor in the US Attorney’s Office for the Southern District of New York. Pomerantz has also been on the faculty of Columbia Law School and has lectured on criminal procedure and white-collar law at Harvard and Stanford Law Schools. From February 2021 to February 2022, he worked pro bono as special assistant district attorney in the office of the New York District Attorney Cyrus Vance Jr. to assist with that office’s criminal investigation into the personal and business finances of former president Donald Trump.