If there is no written contract, a landlord may, by action, recover reasonable satisfaction for the use and occupation of his land. If on the trial a verbal contract reserving rent in a certain amount is proven, the verbal contract shall be evidence of the amount recoverable.
Recovery of rent in absence of written contract
KRS § 383.090, under RENTAL OF PROPERTY -- FORCIBLE ENTRY AND DETAINER -- UNIFORM RESIDENTIAL LANDLORD AND TENANT ACT.
KRS § 383.090