Ah, I am not a breeder myself, my dogs are spayed and neutered, but what I would expect is... That the breeder makes the seller sign a contract that if the buyer ever can not care for the dog any longer or no longer want the dog, they must return it to the breeder, no exceptions! Also, to ensure that the dog(s) is/are altered at the appropriate age. That a contract is signed saying that if the breeder ever feels that it is necessary to take the dog back (suspects it is not getting proper care, etc. legit reasons though), he or she may with or without refund. That the breeder keep contact with the buyer throughout the dog's life with regular updates, have the buyer's phone number and vice versa. That there is a X number of weeks/month health guarantee. That the puppy or puppies are vet checked before being rehomed with the potential buyer, and if anything is wrong with it then it may be returned for a refund. That the puppies are vaccinated, dewormed, deflea'd, as appropriate to age. That potential homes are found and screened before the breeding takes place, and during the puppy's 8-12 weeks at home. That the breeder would keep their puppies and dogs until they find good, forever homes, however long that may take (even if that means the dog's entire life..) That the breeder would ensure the potential buyer is breed experienced, and ask about methods the potential buyer uses for training, if they've had a dog before, have any allergies, meet the family, discuss exercise requirements etc. Hm, that's all I can think of, but as I said, I have not and never will breed my dogs. EDIT: I corrected some misspelled words and made it a bit more readable.