I think you are right not to want one shipped to you. It's also a red flag if the breeder has a lot of other breeds there.
If you are having trouble finding a good breeder, maybe someone in the regional forums can help you, or in the yorkies for sale. You can also contact the AKC yorkie club in your area and get a list of breeders.
Have you considered getting a rescue?
Is that her in your avatar? She is so cute.
