Subject to the rules of this Chapter, and of Part I of this Division, a freehold estate, as well as a chattel real, may be created to commence at a future day; an estate for life may be created in a term of years, and a remainder limited thereon; a remainder of a freehold or chattel real, either contingent or vested, may be created, expectant on the determination of a term of years; and a fee may be limited on a fee, upon a contingency, which, if it should occur, must happen within the period prescribed in this Title.
SOURCE: CC ‘773.