I agree with all the above advice but maybe you could have her over and explain to her what exactly she would need to keep them healthy and how to properly take care of them. I would start by showing her how you and other keepers take care of them as opposed telling her everything she did wrong. I've had a similar experience and it seems the person will either react positively and establish good husbandry with help, or realize that it may be not be financially feasible for them to keep the snakes and realize that its in the snake's best interest to go to someone with the ability to properly take care of them.