It would be wonderful if all these guys could come with a good health for life guarantee, BUT...............Anyway as long as you get some sort of health guarantee and then take the puppy straight to your Vet. soon as you get him, for a good check-up, and take in a stool sample to be tested for parasites and worms. Make sure you read up on how to feed, care and train your boy. Don't let his size make you carry him around in a blanket, let him be a dog.