Just found out she's the sister of the disgusting Donya Fiorentino.
You know, the model who made completely false domestic and child abuse allegations against Gary Oldman, as part of a failed custody bid. She was left with severely restricted access to the children, could only see them under state-appointed supervision, and had to pass a drug test before each visit. Both kids ceased contact with her upon reaching adulthood.
Given Linda's reputation for being a serious cnut when the cameras weren't rolling, it seems that massive personality flaws run deep in this fucked up family.