Mo. Rev. Stat. § 92.765

*92.765. Records of actions taken, where filed — affidavit of compliance for sheriff's sale, filing with court. — Affidavits of publication of notice of foreclosure, and of posting, mailing, or other acts required by the provisions of sections 92.700 to 92.920 shall be filed in the office of the circuit clerk prior to the trial, and when so filed shall constitute part of the evidentiary documents in the foreclosure suit. Such affidavits shall be prima facie evidence of the performance of acts therein described, and may be so used in the trial of the suit, unless challenged by verified answer duly filed in the suit. The collector shall file with the court an affidavit of compliance with notice requirements of sections 92.700 to 92.920 prior to any sheriff's sale. The affidavit shall include the identities of all parties to whom notice was attempted and by what means. In the case of mailed notice returned undeliverable, the collector's affidavit shall certify that additional notice was attempted and by what means. The expense of complying with this section shall be taxed and collected as other costs in the suit.

(L. 1971 H.B. 472 § 15, A.L. 2022 H.B. 1606 merged with H.B. 1662) *Revisor's Note: This section was amended identically by both H.B. 1606 and H.B. 1662, 2022. In 2023, H.B. 1606 was declared unconstitutional (see annotation below). The H.B. 1662 language remains in effect. (2023) The inclusion of Section 67.2300 in H.B. 1606 from 2022 declared unconstitutional as violating the single subject rule of Article III, § 23 of the Missouri Constitution. The remaining provisions of H.B. 1606 could not be severed and the bill is declared invalid in its entirety. Byrd, et al. v. State of Missouri, et al., 679 S.W.3d 492 (Mo.banc).