The maximum duration of a standard residential lease agreement is one (1) year in Kansas. Leases longer than one year must be in writing (not verbal).
Verbal leases are valid for shorter rental periods. Three-month leases are common in Kansas, for example. However, it is recommended that all rental agreements be in writing. Verbal agreements are more difficult to prove and enforce.
If there is no tenancy term specified in the lease, the tenancy is based on how often the rent is paid. It is a week-to-week tenancy if rent is paid weekly, and a month-to-month tenancy for all other durations (KS Stat § 58-2545 (2018)).
The information for this answer was found on our Kansas Residential Lease Agreement answers.