If Courtney's residence is unoccupied, it's a good idea to forward their mail. Go to a USPS post office and put in a forwarding order to send the mail to yourself or whoever is working with you to see to the immediate affairs.

You don't want mail piling up at the deceased's home, telegraphing to the world that the property is empty. You will need documented proof that you are the executor along with a death certificate.