My mother found an ad for a yorkie female in the paper. I called the woman sounded very educated on the breed. She has even waited 16 weeks before putting her in the paper seeing she's so small. She claims this is her first time breeding but she has owned yorkies for years. The lady went into great detail on how shes been waiting for the right dogs to breed & how she has all this extra testing done. Seeing that she's not a actually breeder I'm not sure how I can research her? Should I ask for a vet references? After dealing with a puppy broker I feel like I can't trust anyone.