Adverse possession is a means by which someone may acquire title to the land of another through certain acts over a defined period of time. Such acts must continue uninterrupted for the time period defined by state laws, which vary by state. In general, the acts of possession must be overt, hostile, exclusive, uninterrupted, and under a claim of right, etc., so as to give the owner or others claiming entitlement to possession notice and an opportunity to counter the adverse possession.
This form is a sample notice that the possessor of the property is not holding it adversely to the true owner.