A Notice of Claim of Adverse Interest in Possessor is a document that a party can use to inform the owner of a property that they are in possession of the property and have an interest that is adverse to the owner's interest. It is typically used in cases where a tenant has moved into a property and is claiming ownership or possession of the property, or when a party is claiming a right of occupancy to a property. There are two types of Notice of Claim of Adverse Interest in Possessor: a Standard Notice of Claim of Adverse Interest and a Notice of Claim of Adverse Interest with an Affidavit. The Standard Notice of Claim of Adverse Interest is a basic form that is used to inform the owner of a property that the possessor has an interest in the property and is asking the owner to provide proof of title or other evidence, such as a deed or lease, to prove the owner's interest in the property. The Notice of Claim of Adverse Interest with an Affidavit is a more complex document that is used when the possessor is claiming a right of occupancy to a property. It requires the possessor to provide an affidavit that outlines the basis for their claim of adverse interest in the property.