Legal Question in Landlord & Tenant Law in Missouri

What you got was a demand to vacate. If you are in violation of alease, you may be liable for twice the normal rent for any period you stay after the demand to leave. If you have a lease, and are in full compliance, you probably do not have to leave at all. Unless there is an allegation of physical violanece of drug use, the landlord will ahve to get acourt order before the police or deputies will force you out. You may want to consult directly with an attorney in your area, as there may be important facts your haven't provided here.

Good luck