To the OP, by all means participate here as much as you can as there is a lot to learn, but also ally yourself with some reputable breeders in your locale to exchange information and ideas. They don't have to be Yorkie breeders, they just have to be experienced and reputable. Join your local kennel club. If there is a regional Yorkshire Terrier Club where you live, join it ASAP and PARTICIPATE. There is no such club in my region and I know I missed out on a lot because of it. We don't even have a local kennel club any more. The "hoity-toity" are usually in the national parent clubs, YTCA and CYTA. If you can handle that, go for it. I'm too free-thinking to deal with it myself, but I've always marched to a different drum, so to speak. You have a good head start with parents who know this breed. Best Wishes!