Subject to the provisions of this chapter and of chapters 47-01, 47-02, and 47-03, 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 chapter.
N.D.C.C. § 47-04-14