Missouri Revised Statutes Title XXXVI. Statutory Actions and Torts § 535.185. Tenant to be furnished address of person managing property and address to receive notices and service of process--post office box address, procedure--violation, effect

(1) The person authorized to manage the premises; and

(2) An owner of the premises or a person authorized to act for and on behalf of the owner for the purpose of service of process and for the purpose of receiving and receipting for notices and demands. If such owner or authorized person has an address which is a post office box, service of process and any notice or demand may be made by mailing a copy of the summons, petition, notice or demand by first-class mail, postage prepaid, together with two copies of such summons, petition, notice or demand pursuant to section 506.150.

(1) Service of process and receiving and receipting for notices and demands; and

(2) Performing the obligations of the landlord pursuant to chapter 441 or this chapter, or any other obligations under the rental agreement and expending or making himself available for the purposes of collecting all rent due from the premises.