I sent a letter claiming intent on their security deposit Dec 1 to the last known address according to Florida landlord-tenant law.

Sometimes maybe you get lucky and the 1st lender has gone out of business or decides the balance is so low it's not worth going after, or maybe they know something you don't know....like hazardous waste or insurance claim or something like that.   

The sooner the better.PS next time you talk to them, politely inform that they are going to have proofs of payment if they ever want to make any claims for paid rent.

Can I "sell" it to my LLC at current market value with a quit claim deed and take the capital gains tax exempt?

The bathroom exhaust fan looks very dirty and they claim other fans are fine but just this one is so dirty.

It would probably be small claims court, so you could handle it without a lawyer. 

The last thing you want is your tenant going to a tenant's union and claiming you are being negligent.

As I understand it, you certainly have some claim to fraud here.

There's no easy way other than to lawyer up and/or take them to small claims court for fraud. 

You could also use a quit claim deed where you make no warranties as to the title's condition.