This is such a sad story. It's hard for me to believe that she is beyond help. The OP would not be on here asking for help if she were ready to just give up on her and have her pts. I would start with a very through medical exam. She could very well have a medical condition that is causing her to act like this. Maybe a combination of training and a new home without other pets or children is the answer.
My heart goes out for you.
__________________  I LOVE my little Furbutts! |