Your dau's yorkie certainly had her share of issues, but it sounds like she's in good hands and getting the best of care. Mine loves walks as much as yours. In my case, she walks on an extendable leash and she'll get way ahead of me and when it comes to an end she'll turn around and look at me like, "Mom, are you coming?"
They're such fun little doggies! Glad you found YT. It's the best place in the world.