I wish we heard from Mary, or did I just miss it? Now it seems they are both MIA, her and the dog.
I would put up fliers etc for a mile or so around this girls house too. You don't want to put all your eggs in one basket. She may just be mean and not really have the dog, someone else close by may have Yoshi. If there is a park, etc close that someone could walk the dog at I'd target that area too. The vet I used to work for was also the inpound for strays, see if there is one of those close by too. Ask if they had a Yorkie brought in recently.
__________________ Mammadoodle to my Yorkiedoodle Barney and our crazy cat Ms. Sassy Pants.  RIP Audrey-Belle 
Within the heart of every stray lies the singular desire to be loved |