Thanks to everyone for all the advice - my puppies will go to homes & people that have signed a puppy contract & Part of that contract will require that they be spayed or neutered by 7 mo of age or else the puppy comes back to me. They will be sold as pet only. As for not being sure as to whether they are 100% purebred - while I do not have actual proof of that - I do have my wonderful vet's opinion that they appear to be 100% full Yorkie & I am debating doing DNA test so there will be no doubt
