Yes, those emails are all scams. There are a few breeders in your area I've heard good things about. Marsha from Miracle Yorkies and Barbara Douglas in Germantown, TN. Barbara's contact info is located on the YTCA website. I'm not sure how far you're willing to travel and I'm for sure Marsha never ships puppies. As far as the term "teacup" it's a descriptive term same as "teapot", but it's not a breed subcategory of Yorkshire Terrier. Some breeders use it to raise their prices for buyers who are somewhat uneducated with the breed. A yorkie is a yorkie whether it's 2 pounds or 20
. I have a 2.5 lb adult and 2 pups on track to be 5(+) lbs at adult weight. The 2.5 lb yorkie is as healthy as can be with no problems, but he worries the dickens out of me when he jumps from things, runs around playing, or interacts with other dogs(I limit interactions with other small dogs unless it's my bully and even then I watch them like a hawk). It's like having a newborn baby and at times very stressful. What size in terms of weight are you looking for? Most breeders know what their lines produce and can give you an educated guess, but size/structuce/ appearance isn't guaranteed. If you want to make sure your pup weighs or looks a certain way, you may want to look into acquiring an adult.