(a) If real property or an interest therein is disclaimed, a copy of the disclaimer shall be recorded in the office of the circuit clerk of the county in which the property or interest disclaimed is located.
(b) If an interest in or relating to real property is disclaimed and recorded as provided in this section, the spouse of the person entering the disclaimer, if the spouse has consented to the disclaimer in writing, shall be automatically debarred from any dower or curtesy interest in the real estate to which the spouse would have been lawfully entitled except for the disclaimer.
(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.