What can I do about my bank dragging its heals on a loan?

[Denis Ryan]

I am trying to buy an investment condo for vacation rentals. When my offer was accepted, the Seller's agent sent a list of approved lenders, which included Navy Federal, who I had a personal account with. They had the best deal, so I changed and went with them. Time is of the essence does not seem to apply to them as they are completely unresponsive and when the loan officer does reply, she doesn't know anything (classic person in the middle). It's been 50 days, we're supposed to close tomorrow and have already extended once by 23 days. They've had the appraisal for over a week, but it's still "under review". They also now have a problem with the HOA's flood insurance not being enough, even though they've already loaned on two other condos in the building. In this market, the Seller has good reason not to extend again and just put it back on the market. If I lose the deal, do I have any recourse against the bank?