First of all; thanks for serving!
Now, consider that you make an Offer, get accepted, and you'all open an Escrow:
Then, three weeks from now, you see another house that you like better; so you just walk away from this one. Nothing to stop you!
What would you say, if YOU were the Seller?
Who's going to pay the $495 Escrow fee?
The Good Faith Deposit has nothing to do with the Financing or even CASH.