So, you're going back to the Island...
I applaud you. I am worried for you, but I respect your tenacity and commitment to your home and our Island. Please be aware, however, that it won't be pretty.
Expect the worst...it will allow you to appreciate what little there is, that is there.

Go in with the mind set of a expectations of a demolished zone.
You will have no comforts or conviences.
If you think you're going to just "pop-over" to the CVS or Walgreens for rubber gloves...think again.
You MUST come FULLY PREPARED. I cannot stress this enough.
Here is a useful website, citing some provisions you might not consider...
I would say FEMA flunked this one big time.