If you just swap licence plates does THAT work
The license plate on a particular car is registered to that car only so no, just swapping plates doesn't work. It's illegal as well.
Depends on what you mean by "work" ... you may get ticketed, for having the wrong plate on the vehicle.
if you transfer them through the state
NO!!!!!! The plate is registered to one car
work on what? and why would you change them?
Without the DMV authorisation it is illegal.
it would be illegal because if the other person got a ticket you would be the paying the insurance and the cost will go up