wow 7 FULL pages is a lot to read lol
First off, Good Luck!!
At first, after reading this, I thought SCAMMER... but if she offered to get a health guarantee... not so much..
I'd still be a little weary.. just to be on the safe side.
When you go see Emma (who by the way is soo adorable, ears up OR down) take a look around the house.. make sure everything's OK.. that nothing "feels" out of place. Plus, you said that another YT member PMed you about a female.. so you always have a backup. Just in case
Oh and there are quite a few time that yorkie ears won't stand up unless YOU help them by taping them up... but if it doesn't bother you.. then heck with it
I personally think it makes them look like a puppy all their lives... and I LOVE puppies
So anyway, GOOD LUCK!! I can't wait to see how it goes!