WELCOME !!! I just want to wish you all the best and good luck in your search - she sounds like a little doll and I'd love to see pictures of your Maggie....
I don't know how anyone handles the aging thing
...my girls are 4-1/2 and 2-1/2 and I cry on their birthdays now cause I want them to live FOREVER.
Hugs to Maggie.... and I hope you find a new yorkie for both of you