Rachel, tell her you will give her baby back when she gets you your deposit back...hopefully she will go over the three weeks to get it together, if not...avoid her at all costs until your 3 weeks are up. P.S. do not sign for any certified letters, hehe
This is bad!
As for Rally, I am sure he will adjust if you do rehome him. But I also think you will not regret keeping him, if you do. You know whats right for you and you should follow what you feel.