Maybe coming home to more than one?

We're considering maybe getting a second dog after we're more settled. It would be nice to have some company for Layla during the day, if we can find a dog that's suited well to her personality.
I fell in love with a little rescue dog I found on Petfinder. She's a yorkie mix and a special needs dog since she has had hip surgery. But she is very very submissive, which I think would be great for Layla since she gets upset when other dogs get right in her face and all she wants to do is hide behind me!
http://www.petfinder.com/petdetail/15819998?recno=3
Isn't she adorable??? She is located quite far from me, but only about a half hour away from my best friend, who is now pregnant and also just bought a house

So we will be going to visit her and her husband in the next few months and if this little dog is still there I think we will also be going to see her!