I'm so sorry you are going through this. It's heartbreaking when you have a little one so sick. Have you checked the Puppy Lemon Law in your area? I can try to look it up for you if you want? The place is in Virginia? I think they only deal with NJ but you can tell your story to Libby Williams, her website is
NJCAPSA - New Jersey Consumers Against Pet Shop Abuse - Home. I think she can add even out of state bad breeders to her site. Why not write to her and see if she can help guide you. She is a wonderful woman. Again, I'm so sorry for you and your family and that poor puppy. Elaine