Future Interests: Remainders and Reversions

Future interests form the invisible architecture of property law, governing who gets the right to possess property after a current estate ends. Whether you are drafting a will, interpreting a trust, or analyzing a deed, understanding the rules governing reversions and remainders is essential. This system of shifting ownership over time ensures predictability and allows property owners to control assets across generations.

The Foundation: What Are Future Interests?

A future interest is a legally recognized, non-possessory property right that will or may become possessory at some point in the future. It is not a present right to use or occupy the land; instead, it is the right to future possession. Future interests are created simultaneously with present estates. The most critical division is between interests retained by the grantor and those created in a third party. The grantor’s retained interest is typically a reversion, while an interest created in a third party to take effect after a prior estate ends is a remainder. Distinguishing between these is the first step in mapping the future of any property arrangement.

Reversions: The Grantor’s Retained Interest

A reversion is a future interest retained by the grantor (or their heirs) when they convey an estate of lesser duration than they themselves own. The reversion automatically becomes possessory by operation of law when the granted estate naturally expires. For example, if Olivia, who owns property in fee simple absolute, conveys it "to Alex for life," Olivia has not given away all she owns. She has carved out a life estate for Alex and kept the leftover piece for herself. That leftover piece is a reversion. Upon Alex’s death, possession reverts back to Olivia (or her estate) without any further action. Reversions are always vested from the moment of creation because the grantor’s right to future possession is not subject to any condition precedent other than the natural termination of the prior estate.

Remainders: Interests Created in Third Parties

A remainder is a future interest created in a third person (the remainderman) that is capable of becoming possessory immediately upon the natural termination of a prior estate created in the same conveyance. For a future interest to qualify as a remainder, two key elements must be present. First, it must be created in a grantee other than the grantor. Second, it must be designed to take effect immediately upon the expiration of the prior estate, not at some random future date. The classic formulation is: "O grants Blackacre to A for life, then to B." Here, A has a present possessory life estate. B has a future interest—a remainder—that is poised to become a possessory fee simple the instant A’s life ends.

Classifying Remainders: Vested vs. Contingent

All remainders fall into one of two overarching categories: vested or contingent. A vested remainder is one given to an ascertained person (someone who is identified) and is not subject to a condition precedent (a condition that must occur before the interest can become possessory). A contingent remainder is one that is either given to an unascertained person (e.g., "to the first son of A," when A has no son yet) or is subject to a condition precedent (e.g., "to B if B graduates from law school"), or both.

The vested category has two important sub-types that often cause confusion:

• Vested Remainder Subject to Open: This arises when a remainder is given to a class of persons (e.g., "to A for life, then to A’s children"), and at least one class member is ascertained and has satisfied any conditions. However, the class is still "open" to allow for the future addition of more members (like the birth of more children). The existing members have a vested right, but their share may be reduced if the class increases.
• Vested Remainder Subject to Divestment (or Subject to Complete Defeasance): This is a vested remainder that may later be terminated or "divested" by the occurrence of a condition subsequent. For example, "to A for life, then to B, but if B ever sells alcohol on the land, then to C." B’s remainder is vested immediately—B is an identified person with no condition precedent to their possession. However, that vested right can be taken away if the condition subsequent (selling alcohol) occurs.

In contrast, a contingent remainder has a condition that must be met before the interest can vest. Using the same fact pattern with a twist: "to A for life, then to B if B is married." Here, B’s remainder is contingent on the condition precedent of marriage. If A dies and B is unmarried, the contingent remainder is destroyed under the common-law Rule of Destructibility of Contingent Remainders, and the property reverts to the grantor.

How These Interests Operate Upon Termination

The fate of the property when the prior estate ends depends entirely on the classification of the future interests.

• Upon a Life Tenant’s Death: This is the most common triggering event. The holder of the next vested interest in the chain of title takes possession. If the remainder is vested (including subject to open or divestment), the remainderman’s interest simply becomes possessory. If the remainder is still contingent, and the contingency has not been satisfied at the precise moment the life estate ends, the contingent remainder fails. This creates a gap, and the grantor’s reversion (which always existed as a backup) springs into possession.
• Upon the End of a Term of Years: The same principles apply. For instance, "to Tenant Corp for 10 years, then to University if it has built a library by that time." If the 10-year term ends and the University has built the library, its contingent remainder vests and it takes possession. If not, the grantor’s reversion becomes possessory.

The operation is mechanistic: the law looks down the line of created future interests at the moment the prior estate terminates. It gives possession to the first person in line who holds a vested interest. If there is a gap because the remainder is still contingent, the law uses the reversion to fill it.

Common Pitfalls

1. Confusing a Condition Subsequent with a Condition Precedent: This is the most frequent error in classification. Ask: When must the condition be met? If it must be met before the interest can vest (e.g., "if B graduates"), it’s a condition precedent creating a contingent remainder. If the condition can cut short an already vested interest (e.g., "to B, but if B smokes, then to C"), it’s a condition subsequent creating a vested remainder subject to divestment. The grammatical placement of the condition ("then to B if..." vs. "to B, but if...") is a strong clue.

1. Assuming "Vested" Means "Absolute and Safe": A vested remainder subject to divestment is still a present, legally protected property interest. The holder can often sell it or devise it by will. The fact that it can be lost later does not make it contingent. Failing to recognize its vested nature leads to mistakes in assessing the current rights of the remainderman.

1. Overlooking the Ever-Present Reversion: In any conveyance, the grantor parts with only what they expressly give. Whatever is left over is retained as a reversion. Even when creating complex remainder schemes, a reversion exists as a silent safety net. A classic mistake is to analyze "O to A for life, then to B if B is 21" and conclude the property has no owner if A dies when B is 20. It does: O’s reversion becomes possessory because B’s contingent remainder failed.

1. Misapplying the "Subject to Open" Doctrine: This applies only to class gifts. A remainder "to A’s children" where A has one child is vested subject to open. A remainder "to my daughter Beth and her children" is likely not a class gift; Beth has a vested remainder, and her children may have a separate, contingent remainder, which is a different analysis altogether.

Summary

• Future interests are non-possessory rights to property that become possessory upon the natural termination of a prior estate created in the same transaction.
• A reversion is a future interest automatically retained by a grantor who conveys an estate smaller than what they own; it is always vested.
• A remainder is a future interest created in a third party, designed to become possessory immediately upon the end of a prior estate. It is classified as either vested or contingent.
• Vested remainders are given to ascertained persons with no conditions precedent. Key subtypes are vested subject to open (for expanding classes) and vested subject to divestment (subject to a condition subsequent).
• Contingent remainders are given to unascertained persons or are subject to a condition precedent. They risk destruction if the condition is not met at the moment the prior estate ends.
• Upon termination of the prior estate, the first vested future interest in the sequence becomes possessory. If no vested interest is ready (i.e., a contingent remainder fails), the grantor’s reversion fills the gap.