class of persons which have a future interest in the property. Thus, may have more children than just and who will also have a future interest in Blackacre. Subject to divestment Vested remainders subject to divestment are remainders that may be terminated by an executory interest before becoming possessory. For example " conveys Blackacre to for life, then to , but if ever becomes a lawyer, then to ." The future interest of is not certain, thus it is "defeasible". Additionally, the interest cannot become smaller by the addition of more remainder owners, thus it is not "open". The identifying component is the possibility of being divested by who owns an executory interest from the remainder if becomes a lawyer. Contingent remainder The contingent remainder is one that is surrounded in uncertainty. A remainder is contingent if one or more of the following is true: (1) it is conveyed to an unascertained or unborn person, (2) it is made contingent on anything but the natural termination of the preceding estate. For example, if we assume that is alive, and conveys "to for life, then to the heirs of ...", then the remainder is contingent because the heirs of cannot be ascertained until dies. No person, while living, can actually have heirs – only "heirs apparent" or "heirs presumptive". We might also assume that is unmarried, and conveys "to for life, and then to if marries." 's interest is a contingent remainder because 's interest depends on 's getting married. In recent years, courts in the United States have merged contingent remainders with executory interests into one category. Identifying remainders The key difference between a reversion and a remainder is that a reversion is held by the grantor of the original conveyance, whereas "remainder" is used to refer to an interest that would be a reversion, but is instead transferred to someone other than the grantor. Similarly to reversions, remainders are usually created in conjunction with a life estate, life estate pur autre vie, or fee tail estate (or a future interest that will eventually become one of these estates). Language note Although the term reversion is sometimes used to refer to the interest retained by a landlord when he grants possession to a tenant, not all real estate professionals can agree on the correctness of this use of the term. Few people would refer to such a transferred interest as