The best and possibly only way to locate a professional transporter with authority, insurance, etc. is to contact one of the RV transport companies. There are at least a thousand TDR members who could do it and some of us are former RV transporters with experience but your chances of locating one with his own hauling authority, commercial liability and cargo insurance, etc. that is in your area or willing to deadhead from wherever he is to FL just to haul your trailer to NY then deadhead on to his next load is pretty slim.
Your best bet might be to ensure it yourself and hire someone able and willing to pull it as an outlaw haul that you feel you can trust after talking with him (or her).