[Ojai]

Hi and welcome! She sure looks cute to me; I thought her coat looked nice in the second picture. How old is she? As I'm sure your research has shown, Yorkies and their coats, as someone once posted, is like a box of chocolates. Some do not achieve their adult coats and colors until they are three years old. I worried when Cubby was about four to six months old, because his coat was so thin. He's 15 months old now, and has a gorgeous silky coat that never tangles, and appears to be close to breaking more blue (even though I like the black!). As for hot spots: I have had a horse and a German Shepard who both suffered from hot spots: the horse, according to the vet, because it was allergic to a certain type of gnat that lived on my property. Can you believe that? I could board him a couple of miles away and the hot spots would disappear! I finally gave him to a friend who was moving to Montana, so he could get some relief. The Shepard only had trouble in the summer, and it was easier to treat. Since she was outside a lot, it may have been the gnats as well, because when I kept her inside, she did not have trouble. So, definitely some sort of allergy, but I don't think it was food related. Maybe your potential pup had flea bites when she was rescued that really irritated her sensitive skin, as LadyJane suggested? The knees and collapsed trachea I don't have any experience with (knocks wood), but there is a lot of information on this site: good luck!