A good breeder will make pass on the important information about the breed including written instructions regarding feeding, health, training and grooming. He will also make sure that the dog is free of deafness, dysplasia, and eye defects. Make sure that a puppy that you purchase is at least 8 weeks old, has current vaccinations from common dog diseases, and be free of internal parasites.
Beware of the puppy mills and pet shops because they are in the business of making profits. Since so many puppies are shipped to pet stores, a pet buyer cannot verify the pedigree of the dog. Just because the puppy may have AKC papers and pedigree does not mean that the dog is healthy and of good quality. Your Old English Sheepdog must be guaranteed against any defaults in hereditary. If it has a life-threatening defect, you should get a price refund or a replacement.
The best breeders will ask many questions regarding the prospective buyers plans for training and housing. They will strongly recommend that the dog be neutered, and if no longer wanted, be returned to them. The breeder should also be a continuing source of help and advice.