Thus, the possibility of reverter is the interest held by the grantor that may or may not be triggered and leads to automatic restoration of ownership in the grantor/transferror. The event (or nonevent) that triggers the automatic transfer of property back to the grantor is called the condition subsequent.
Distinct from a fee simple absolute, a fee simple determinable is an estate that has a provision that automatically reverts the property to the grantor if an event happens.
The possibility of reverter is a future interest held by a grantor or transferor of property as a fee simple determinable (See possessory estate).
