Oh you are so going to get dumped on with this q. lol. However, much as you might be tempted to allow this, I'd give it a lot of consideration first. Do you realise that once you have allowed him to be used, he will always have his mind on 'the next one'? He won't be quite as much your dog as he is now. In other words, you will be opening Pandora's Box with him. Some dogs take to stud work better than others in this respect, but it is a risk. Next, Dobermans are prone to some inherited problems, hearts, wobblers being just two. Do you know enough about the various bloodlines in your breed to be sure you won't be doubling up on a genetic fault with any visiting b itch your boy might attract for a stud? Have you shown him? Have you put him through the various Schemes? Can you be sure these bitches have also been tested etc? As for ready homes via family and friends - forget that one. Even with a stranger, it's amazing how people 'vanish' from the scene by the time puppies have actually arrived (been there, done that!!). And the owner of the stud has just as much responsibility for the future of each puppy he sires, as does the breeder of these puppies (or should have). Have you seen his breeder since you had him - provided she's reputable (and if he was sold without endorsements I'm highly suspicious of that one!) she should be able to give you an honest assessment as to just how good, in reality, your boy is (we all think we have the best!!) No, you don't, in the UK, 'register a dog as a Stud Dog with the KC'. He has to be a registered dog (as a puppy) and have no endorsements (not for breeding) against his registration. That's all - and assuming the breeder of the litter wants to register the puppies with the KC! (and her b itch has to be registered also) Lastly, do you know that a male can pick up an infection from a visiting b itch? Doesn't often happen with the occasional mating, but it can and it's worth taking into consideration. Bottom line - flattering as it may be to have your dog admired in this way - there are huge responsibilities involved in having your dog used at stud. Think carefully about this. What he doesn't know, he won't miss!!!!! Add - Living in the UK, where putting a Ch.title on a dog, especially in the more popular breeds is very difficult, I don't personally put quite as much emphasis on the 'must have a Ch. title' as others in other countries. There are some extremely good dogs out there with much to offer their breeds, who, although shown quite successfully, don't actually ever make a Championship. And how often is the non-titled litter brother of a big winner, the better producer. But I still urge this owner to think twice on this idea!!