Many good breeders consider their dogs family, and usually have no more than can comfortably live in their home. Too many dogs may result in lack of proper care. The AKC may investigate any breeder who has more than 10 litters a year. Breeders who have many litters may not properly socialize each puppy or raise them properly. Breeders should be comfortable discussing their prices.
Most breeders do require a deposit for a puppy.
The parents of well-bred pups will have all of their health clearances. Beware of the breeder who tells you they haven't had time to do it yet, or those who make other excuses. ALL breeding stock should have written certification that their hips, eyes, and hearts are normal. Hip dysplasia, canine cataracts and heart murmurs may be hereditary. No dog should be bred before the age of two years.