The former Hole frontwoman wrote that Frances, who was recently placed under the guardianship of her grandmother and aunt, had been misled and was "deluded" about her financial status.
Love said: "I dont care really i hate to spund cold but any kid of mine who pulls this s**t has lost her position and friends in nyc they will pretend to like her, but ill go teach at bard before she gets in (sic).
"She was deceptive she lied and shes lying to herself, she sits on her facebook adding yet more books and films and frankly the whole thing disgusts. My daihgter is not always honest."
She added: "Dont worry frances is a wonderful kid shes gotbadd people around her and wants it both ways, her aunt brieanne who isnt kurts sister is a black hole.
"You realie this will put you in juvenoile fami;y circus three times in your little life? this is what along with his mother killed your father.
"I think im selling a house today, not in the mood to supportthese assholes anymore. i have s** to do, I love you and always will unconditionally."
Of reports that Cobain's resettlement was related to Love's alleged drug use, the singer's lawyer Keith A. Fink added: "Courtney's been clean for years and is perfectly fine.
"This is simply about Frances preferring to live with her grandmother at this time."