The Executor of the Will has to take the Will and the Title to a Notary. And sign the deceased name first and their name under that, followed by the Word, "Executor". It is then Notarized and sent to you, with an official Death Certificate. Who lives in which state should be of no consequence.
There are many ways to do this, Above is the correct legal way. Some have the executor just sign the decease'* name, or whoever has the title in hand. The correct legal way is best if there are multiple heirs. Was the gift a decision by the heirs, or are you stated in the Will. If your stated in the Will you owe State Inheritance Tax in most States.