The reversion rule designates a remainder in the heirs of the grantor or testator.
grantor of trust
a trust that is created under a will and that becomes active after the grantor dies.
(law) an interest in an estate that reverts to the grantor (or his heirs) at the end of some period (e.g., the death of the grantee).
When real property is acquired by purchase, a deed is given by the seller, or grantor, to the purchaser or grantee.