Before filing an Unlawful Detainer lawsuit, you must serve the appropriate notice on the Tenant. In Missouri, notices vary by eviction type:

Once you know which notice is needed, you must "serve" it on the Tenant — meaning actually deliver the completed notice.

Under Mo. Rev. Stat. § 535.020, serve the Tenant by one of these methods (pick one):

Have the server complete an Affidavit of Service documenting how and when the notice was served. Attach this to your Unlawful Detainer petition when you file. Without it, your case may be dismissed.

Can I slip the notice under the door?

No. Missouri requires personal delivery, leaving with a qualifying household member 15+, or posting plus mailing.

Can I serve the notice myself?

Not smart. The server may need to testify at trial. Self-serving testimony is easy for opposing counsel to attack. Use a third party.

Does certified mail count if the Tenant doesn't sign?

Missouri's service statute uses first-class mail (not certified mail) for the post-and-mail method, so a signature is not required for this method. However, you must also post the notice on the premises.

What if the Tenant keeps avoiding service?

You must serve the Tenant. No exceptions. If the Tenant is evading service, consider hiring a process server. Facebook, text messages, and emails do not substitute for proper legal service of a pre-suit eviction notice.

Affidavit of Service — Documents how and when the notice was served

Service of Notice — Mo. Rev. Stat. § 535.020

Month-to-Month Notice — Mo. Rev. Stat. § 441.060

⚖️ Disclaimer — This article is for general informational purposes only and should not be considered legal advice or a legal opinion on any specific case or situation. It does not create an attorney-client relationship. We make no guarantees as to accuracy, completeness, or changes in the law.