A condition subsequent is a condition under which an estate or interest is so given as to vest immediately, subject only to be divested by some subsequent act or event. A testamentary disposition, when vested, can not be divested unless upon the occurrence of the precise contingency prescribed by the testator for that purpose. SOURCE: Probate Code of Guam (1970), § 143.
Condition Subsequent: Definition; Operation
15 GCA § 641 — under Interpretation of Wills; Effects of Certain Provisions; Conditions and Remainders; Legacies and Interest.
15 GCA § 641