A right to redeem property from any sale under this Code shall exist in any owner or person interested in that property, other than an undisclosed beneficiary of an Illinois land trust, whether or not the interest in the property sold is recorded or filed. Any redemption shall be presumed to have been made by or on behalf of the owners and persons interested in the property and shall inure to the benefit of the persons having the legal or equitable title to the property redeemed, subject to the right of the person making the redemption to be reimbursed by the persons benefited. No redemption shall be held invalid by reason of the failure of the person redeeming to have recorded or filed the document evidencing an interest in the property prior to redemption, other than an undisclosed beneficiary of an Illinois land trust.
35 ILCS 200/21-345