I four yorkies and one large mixed breed dog (1/2 Husky 1/2 Akita) so I know how you feel. We just got 2 females about 3 weeks ago and I'm potty training now/again. You don't
really want to go through that again with
another one, do you? So, I don't
really think you need another yorkie.
Oh! Did I tell mention that I was looking for another one? I'd be
happy to take him off your hands if you feel they are too full of yorkies.
He is so precious! There's a reason it happened the way it did. It was just meant to be! The more yorkies you have in your life the happier you'll be. It's a great thing that happened for you and him. And Oh My! I may just have to start looking again. He is awesome!