Mississippi Code Title 89. Real and Personal Property § 89-22-31

(a) A disclaimer of an interest in or relating to real property does not provide constructive notice to all persons unless the disclaimer contains a legal description of the real property to which the disclaimer relates and unless the disclaimer is filed for recording in the office of the chancery clerk of the county or counties where the real property is located.

(b) An effective disclaimer meeting the requirements of subsection (a) constitutes constructive notice to all persons from and after the time of filing.

(c) Failure to file, record, or register the disclaimer does not affect its validity as between the disclaimant and persons to whom the property interest or power passes by reason of the disclaimer.