Two months after rap superstar Eminem, 28, and Kim Mathers reportedly reconciled for the sake of their daughter, Mathers filed for divorce on Thursday in Michigan. "This is a marriage that apparently just isn't going to work," said her attorney, Robert Z. Feldstein. "Luckily, the parties seem to be communicating well with respect to their daughter and hopefully that communication and cooperation is going to be ongoing for the best interest of the child." Mathers and Eminem -- whose real name is Marshall Mathers III -- married in June 1999. They have a 5-year-old daughter, Hailie Jade. Eminem's attorney, Harvey Hauer, said the couple made "a good faith attempt" at reconciliation but "apparently it wasn't the most successful attempt." Hauer said his client's main concern is his daughter, not publicity. "Whoever thinks that is not thinking straight," Hauer told The Detroit News. Kim Mathers, 26, is seeking joint physical and legal custody of their daughter. She also has asked the court to put in place a restraining order, freezing the couple's mortgage, life insurance and other assets, until a divorce agreement can be worked out. No hearing date has been set. Eminem -- who won three Grammy Awards last week -- filed for divorce last August after a run-in with Warren, Mich., police and a suicide attempt by his wife. The rapper faces sentencing on April 10 after pleading guilty last month to a weapons charge from a fight outside a Warren nightspot in June.