The handed down property is know as what
estate
will
inheritance
guardianship

Inheritance.

Explanation:

Any property or material things or even financial items that a person gets from anyone after the latter's death can be termed as an inheritance. It can be anything as long as it is given or obtained after a person's death and had been left to him/ her.

Estate is the property, land or vast amount of land, often with a large house in it, of someone. This is not a handed down property, and can be any of an individual's property. It doesn't necessarily mean it's a handed down property.

Will is the written 'distribution' of whatever property a person has at the time of his death. It is a legal paper or direction that gives the proper distribution of his things among his near and loved ones.

Guardianship is the legal process of getting the right to take care of someone or something. It allows or indicates the legal right of the person to be entrusted with the care of someone else or something.