I've never heard of her, but just based off the info on her website, I would keep looking. There are quite a few red flags there.
* For starters, she is producing multi-breed litters.
* According to the birthdates of the available puppies, this breeder has had 18 litters this year!

A bit much, don't you think?
Yorkies - 3/147, 3/17, 3/22, 4/3, 8/6
Maltese - 1/2, 2/29
Yorkie/Maltese crosses - 1/18, 3/4, 3/22, 4/12, 4/23, 5/6, 6/18, 7/11, 7/13, 7/23
Yorkie/ShihTzu cross - 2/2
* One of the Yorkie/Maltese puppies being shown is solid black.

How exactly does one cross the two breeds--neither of which are black and neither of which have standards calling for black--and end up with a solid black offspring!?
Again, I have no first hand knowledge regarding this breeder, but this is based of the information that she makes available on her site...in black and white.