Hi there!
I too live in Toronto and was recently looking for a Yorkie.
Betty Ann Durrer has been breeding Yorkies for 30 years and she is very well respected in the show dog world.
Durrer Yorkshire Terriers ~ About Us
I contacted her, but she did not have any puppies at the time and recommended Vicki Hamilton
VickiLyn's Yorkies - The Finest Yorkshire Terriers in Ontario!
I got my little guy from Vicki and am VERY happy. He is a happy little guy and friendly. I really liked Vicki too.
Good luck!