The deceased had very few assets if any (owned a very old car, rented the apt, etc) that we know of. The deceased's son is very shady and took all of his files right after he died. And he won't say if he is the executor or not. Mom is receiving bills as well as a check made out to the Estate. She doesn't want to get in trouble with debtors but also doesn't want to pay bills if the son is actually the executor.