The Florida motor vehicle Web site has the form that must be signed in Delaware at time of purchase by a Delaware law enforcement officer to verify the VIN, mileage, bill of sale and signed over Delaware title.https://www.flhsmv.gov/dmv/forms...You need to have proof of Florida insurance for the car to drive it.The Web site above says that you can buy temporary tags to take the vehicle back to Floridau2022 but who has to do it and with what documentation is vague (and they would have to get to Delaware somehow). You could contact a Florida motor vehicle service center for more information. As far as I can tell, Delaware does not issue transfer permits to drive a car purchased there to another state.