Adverse Possession

Adverse possession is a property doctrine that allows a person to acquire legal title to land owned by another through continuous, open, and hostile occupation for the period specified by the applicable statute of limitations. The doctrine transfers ownership from the title holder to the possessor, effectively rewarding productive use of land and penalizing owners who sleep on their rights.

The traditional elements are remembered by the acronym OCEAN: Open and notorious (visible to the owner and community), Continuous (uninterrupted for the statutory period), Exclusive (not shared with the owner or public), Actual (physical occupation and use), and Hostile/Adverse (without the owner's permission and inconsistent with the owner's rights).

The required state of mind for hostility varies by jurisdiction. Under the objective standard (the majority approach), the possessor's subjective intent is irrelevant — the possession is hostile if it is inconsistent with the owner's rights, regardless of whether the possessor knows they are on someone else's land. Under the good faith standard, the possessor must genuinely believe they own the land. Under the aggressive trespass standard, the possessor must know they are trespassing and intend to claim the land.

Special rules apply to continuity. The statutory period varies by jurisdiction (ranging from 5 to 20 years). Tacking is permitted — successive possessors can add their periods together if there is privity of estate between them (typically through a transfer). Seasonal use may satisfy continuity if it is consistent with how a true owner would use the property. Disabilities (such as the owner being a minor or incapacitated) may toll the statute of limitations.

Adverse possession cannot be established against the government. Property owned by federal, state, or local governments is generally immune from adverse possession claims.

On property exams, adverse possession requires systematic analysis of each element. Common exam issues include whether possession was sufficiently open and notorious, whether it was continuous, and whether the hostility requirement is met under the applicable standard.