Rosie O'Donnell's marriage to Michelle Rounds is officially over and their lawyers are set to submit the paperwork to the courts tomorrow in Manhattan. Rosie O'Donnell is officially divorced. The 54-year-old comedienne's marriage to her second wife Michelle Rounds, whom she split from in 2014, has been legally dissolved 15 months after she filed for divorce. A source told the New York Post newspaper: ''The divorce is finalised, it's just formality for the paperwork to be submitted.'' The former couple's lawyers will submit the paperwork to Manhattan Supreme Court in New York tomorrow . The settlement, which was initially reached in October, was allegedly in line with the ex-lovers' prenup and they will share joint legal custody of their adopted three-year-old daughter, Dakota. Since calling time on their relationship in 2014, Rosie - who married Michelle in a private ceremony in 2012 - was rumoured to have started dating Tatum O'Neal late last year. However, things didn't work out between the pair and they split amicably in October following a tough few months. A source said at the time: ''They broke up. It wasn't working. In their four months together, they went through a lot: Rosie's father died, her daughter [Chelsea] ran away, there was a lot of of tumult. It was too much. Tatum wouldn't mind meeting a nice girl. She is back on the market.'' Rosie also has adopted children Parker - who she took in as an infant in 1995 - and Chelsea, Blake and Vivienne from her marriage to first wife Kelli Carpenter...