SDCL § 43-9-1: Freehold estate--Commencement at a future date.

Subject to the provisions of this chapter and of chapters 43-1 to 43-7, inclusive, 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.