@Dozermommy I appreciate your ability to even stick it out with a trainer and sedatives. It takes time and a lot of effort to work with a dog that has been raised up for fighting. No matter the breed of dog, any dog exposed to that lifestyle can will not show the traits of that said breed. Being that she has kids and the dog has already left her bloody, this clearly isn't the home for her.
I would love to be patient in this instance but if I were in this position, I think my resources towards finding him a better situation would be just that. Sorry to hear this. I wish there was more. Medical issues aside, she has a family to look out for and if she's scared herself working with the dog wouldn't be good for the animal or her.