Steve Burton and his ex-wife Sheree are up for another round of messy legal issues. Less than three years after the General Hospital star settled his contentious divorce after 23 years of marriage, which came as the result of a WILD cheating scandal that resulted in Sheree getting pregnant, the two are once again at odds over a kid. But this time it's over Brooklyn, the daughter they share together. Related: Cameron Diaz & Benji Madden Welcome Third Baby On Tuesday, TMZ reported the exes are back in court over a custody issue...