There are many different situations. Ideally you have been named the executor of your father's estate, and the will states what can be done with the car and other assets of the estate and therefore you can dispose of the car for the estate. However, you probably will need to provide proof of this at the motor vehicle bureau before they will allow you to sign as the executor. Remember, the estate probably now controls everything your father owned and in most states that will require a will to dispense with these things properly, or else a probate court will determine disposition. It is definitely worth checking with the motor vehicle bureau and probably a lawyer too, which you probably will need for other aspects of the estate. I'm not a lawyer--just someone who went through all of this when my Mom died and left a very simple estate with a clear will, etc. Still, it took more than a year to wrap everything up. Best of luck with it all.