You are an angel to bring her in and give her a home with love and support. I'm sorry that you are unable to keep her.
If I was on the west coast, she would have a new home in a heartbeat. You can tell in the pics that she is really sad and misses her mommy. I like the name Hope, but she really looks like a Sadie to me. Good luck on finding a new forever home for her. Keep us updated on her spirits.