UPDATE on Montgomery County MD FB page:
"Lost Pets Chip traces to puppy mill breeder who says this is a PB Yorkie (17 pounds). No owner but she'll get a good home." 
Puppy Mill breeder has no record of who bought the puppy?????? 

At least it is no longer in a shelter.
Sounds like the breeder is trying to resell the dog to me.
How could they have it chipped and no record of who bought it?  
https://www.facebook.com/photo.php?f...type=1&theater