I am an attorney, and what I am telling you is what I would NOT tell a client. However, what you need to be sure is you are protected from liabilities if you have a wreck and your investment is protected if there is a loss. First, check with your vehicle insurance; you are probably covered with anything behind your vehicle regardless of to whom it is registered or who is the legal owner. Secondly, check with your insurance agent. See if you can insure the trailer for any loss even if you have yet to put a WV license plate on it. I bet you can, as long as you legally own it. You don't need any proof of insurance since your vehicle insurance protects you and the trailer from at fault liabilities. And thirdly, just drive your vehicle and the trailer home with the seller's Florida license plate. NO one will question the Florida license plate, and it is not probable cause for an officer to stop you. Unless you have an accident and the police question the different state license plates (unlikely), you have no problems. The absolute worst scenario is you get a ticket for not towing a properly licensed trailer. If that happens, I suggest you buy a lottery ticket.