Jordan, she doesn't really have 100 cats does she?!?!?!?!

Perhaps your parents and any brothers and sisters, the children of your grandmother, should get together and get her out of there. It doesn't sound like a safe place for her.
Is their any child that is willing to move her into their home and help her?
I think she needs someone to step in...it's sad....

I'm sure BC rescue would pick up the dogs if you explained the situation.