There is a certificate in the Russian bureaucratic system that is literally called:
Certificate that a person is currently living with a dead man
The reason for that is that a dead man is still registered in that place (referring to Russian resident registration). So it really looks like a dead man is living with those who are alive "according to documents".
Is there any analogue in US? Or is the bureaucratic system built so that you do not need to certify you are living with the dead?