Yes ma'am.. should be based off of where you are staying right now. Just keep an eye on his LES. A friend of mine was not receiving it when she should have been and it took almost 8 months for them to get reimbursed
Yes, you should. It will be BAH rates for the area that you are currently living. It may take a bit for the BAH to start (1-2 months) but they will give you retroactive pay back to when it was supposed to start.