That's great news! Happy for you guys! Isn't it awesome how smart Yorkies are? Some say Yorkies are hard to train, but I think they're highly intelligent dogs and that with a lot of committed love, attention and correct training from us, they will certainly surprise you.
Just be aware that
sometimes, during their adolescence, they may relapse and you'll feel like you're training them all over again. If that happens, not to worry, it passes
Consistency and patience is key!!