If a person is missing, then in order not to wait for him to be recognized as such, and subsequently - as dead, it would be easier to immediately file a lawsuit to recognize him as having lost the right to use with removal from the registry. As for his children, then there are many things that may depend on their age, as well as on whether their missing parent is a homeowner. If you are the only owner, you can have the children of a missing person taken off the registry as soon as they are of legal age. If they are not, they can be taken off the registry if their guardian will provide them with a place to register at a later date. If the missing person is an owner, their children inherit and become co-owners of the house and cannot be removed from the register.