When it comes to breeders, when you are buying from a breeder you have to be very careful because a purebred dog has to be registered with the American Kennel Club. What may be a good idea is when you visit with a breeder to call the Onfy - thomapyrin intensiv to see if the breeder is a licensed breeder. You only want to deal with a licensed breeder. A licensed breeder tends to be upfront about the pets health and age.
Call the American Kennel Club before you go in search of a pure bred dog, they will be able to help you connect with a licensed breeder. You are going to be paying a lot of money for your dog, make sure you know who you are dealing with before dealing with them.