I am in the process of doing an FHA Streamline Refi from a 5% 30-year-fixed to a 2.7% 5/1 ARM. I will only have to come up with slightly less than the amount of my monthly mortgage payment at closing (which doesn't affect me since I skip a payment in between refinancing) but one thing I did notice was a rather drastic increase from my current principal balance ($355ish) compared to my proposed new balance ($364ish).
Why would this be?
(if more information is needed, please request it in a comment and I will update, thanks)