On February 7, 2014, Mack and his brother, Raphiel Mack, were convicted by a federal jury of bribery, fraud and extortion, based on the details of their participation in a scheme to take money in exchange for helping get approvals to develop a downtown parking garage as part of a sting operation by law enforcement. Days after the conviction, the office of the New Jersey Attorney General filed motions to have Mack removed from office, as state law requires the removal of elected officials after convictions for corruption. Initially, Mack fought the removal of him from the office but on February 26, a superior court judge ordered his removal and any actions taken by Mack between February 7 and the 26th could have been reversed by Muschal. Previously, Mack's housing director quit after it was learned he had a theft conviction. His chief of staff was arrested trying to buy heroin. His half-brother, whose authority he elevated at the city water plant, was arrested on charges of stealing. His law director resigned after arguing with Mack over complying with open-records laws and potential violations of laws prohibiting city contracts to big campaign donors.