I did contact numerous companies today and some that offer backup does not offer other features with the policy or reduced coverage.

We have a commercial general liability policy that is pretty easy to add and subtract properties from, and I'm looking for something similar for damage coverage.

However I also heard that because of this that the government subsidizes the insurance coverage.  

In case you haven't made a decision about you insurance, I would HIGHLY recommend getting coverage specifically for short term rentals.

The good thing is that once the gutting is done and the handful of flood claims are done (most people didn't have insurance or adequate coverage) prices will be back to normal because people without insurance don't have anyone willing to pay 5/10x the labor cost for them.We were lucky in that our HVAC units worked at the rentals so we've been running those and fans.  

He or she will tell you exactly how much they can finance based on the current interest rate and the Debt Service Coverage Ratio (DSCR) that they need (typically 1.15).

Or alternatively if the owner walks away, and the bank decides to sell the NP'ing note ... does the insurance coverage convey with the note since the bank presumably required to be listed as additionally insured on the flood insurance policy (if the property was in the flood zone and one was required)?

Just make sure the debt service coverage will be 1.25 or better.

.)- what coverage do they have      is there coverage for flood?

(This is just for property insurance, liability coverage is important too - since most people don't have the hundreds of thousands a liability claim can become)