A veteran of the New York/New Jersey indie scene going back to the late 1990s, he became a mainstay in the early days of Ring of Honor (ROH), where he is a former two-time ROH World Tag Team Champion. Alongside Monsta Mack, he was a part of the violent tandem Da Hit Squad, where he continued to show what true mayhem in a ring could be. Since arriving in MAPLE LEAF PRO, Dan Maff has had his sights solely on vengeance against PCO from their feud in ROH in 2019!