This pisses me off. *This* is the type of situations that lead to the news stories, on pit bulls. All dogs are pack animals - and those owners, are her pack. She's alone, and needs socialization. This is awful. And contrary to popular belief, Pit's are really, really, really "people" dogs. Some may have issues with other animals, or dogs - but very rarely do they have people issues....until *this* sort of thing, happens. I'm really mad.
Try calling a Pit Rescue around there. Honestly, I'd be worried about taking her in - not because she'll attack your entire family in a blood-fest (it's obvious from your interactions with her, she's people-friendly).....BUT she might do that to your cats. For real. Unless she's had exposure to other cats in her life, she might not be tolerant of them.
Charley is an unbelievably laid back dog, with adults, kids, babies and other dogs - but he doesn't like cats. I brought him to my Grandma's, and under supervision we could tell him to STOP! - when he'd start giving her cats the "eye", but if he was alone with them, I'm pretty confident grandma wouldn't have her cats any longer. And Hazel? Forget it. I won't even bring her over there, because I don't think she'd listen to STOP!
Poor dog. WTH is the matter with people??