like everyone else has said...sounds like a broker for a puppymill to me. they may rent a "nice" place for the public to come see the puppies...but that absolutely no indication of how the breeding males and females are kept. when there is a broker involved, it screams puppymill! any purchase from a mill directly supports the suffering of thousands of breeding dogs....
in case you are interested in rescuing a baby in need of a home, check out some of these yorkie rescues! there is nothing more rewarding than helping a pet in need!
Yorkie Rescue and Adoption- Adopt a Yorkshire Terrier Near You — Ohio Yorkie Rescue — ADOPTIONS —*RescueMe.Org Ohio animal rescue and adoption assistance
do a google search for yorkie rescues in your area and you will likely find a ton more!