Hey Dooderbutt, put me on your ping list too, I would also like to see the progress on this one.
I looked up businesses with "crew69" or "crew 69" in all of Florida and came up empty. I then looked up "A. Falanga" and there are a LOT of those in Florida.
Either way, this seems like pure extortion. It might be likely this idiot had a contract with FEMA and not you. Did you ever meet this guy or company before? Did you have ANY type of agreement with them to pay before they started work? Did you sign any documents with them?
I had a bazturd roofer come to the house 2 years ago. He tried a stream of underhanded legal, emotional, and twisted logic tricks on me, which I expected he was used to seeing people cave on. Instead of getting worried, I went on the offensive and it would up costing the guy hundreds of dollars. I threw his ass on the street (figuratively), and over the phone I outlined my list of complaints and crimes he would be taken to court on if he didn't comply with my demands both in actions and dates to be completed. He backed down pretty quickly and got the hell out of Dodge.
Go on the Offensive. Pull out all the stops, and notify everyone who might care. You will get a lot of help. This guy could be charged with a few crimes for this tactic.
If they were even smart, they'd put out a letter like this with a small amount, say $300 - there are a lot of people out there that would probably pay it in a heartbeat rather than lose their house.
Even if I am in no danger of losing the house, I'm going to bring this to a lot of people's attention. It's just downright nasty what they are doing.