"Courtney's been clean for years and is perfectly fine," says her attorney Keith A. Fink. "This is simply about Frances preferring to live with her grandmother at this time."
On Friday, a judge appointed Kurt Cobain's mother Wendy O'Connor and her daughter Kimberly Cobain as temporary legal guardians over Frances Bean. A hearing on the matter is set for Feb. 10.
"Frances is 17 and a strong-willed child, and this is a decision she made on her own," Fink adds. "No matter what, Courtney loves her daughter more than anything in the world."
This isn't the first time O'Connor has been named guardian of Frances.
In 2003, L.A. County officials removed Frances from her mother following the singer's arrest for attempting to break into her ex-boyfriend's home. O'Connor was given legal control over the girl.
But Love regained custody in January 2005 after the singer proved to the court that she turned her life around and had kicked her drug habit.
Last year, Frances told Harper's Bazaar that O'Connor, who lives in Olympia, Wash., has been a constant force in her life. "She's probably the person I respect most out of anybody in the world," she told the magazine.
Geraldine Wyle, a lawyer for Frances and the two guardians, said only, "This is a private family matter."