Iowa Code Title XIV. Property [Chs. 555-594A] § 589.24. Defective instruments

A deed of conveyance, or other instrument purporting to convey real estate within the state, where the deed or instrument has been recorded in the office of the recorder of any county in which the real estate is situated, and the deed or instrument was executed by a county treasurer under a tax sale, a sheriff under execution sale, or by a resident or foreign executor, administrator, referee, receiver, trustee, guardian, commissioner, individual, partnership, association, or corporation, and was executed and recorded more than ten years earlier, and if the grantee named in the deed or conveyance, or other instrument, or the grantee's heirs or devisees, by direct line of title or conveyance have been in the actual, open, adverse possession of the premises since that date, is legalized, valid, and binding, notwithstanding defects in the execution of the deed or instrument.