Rent Increases for Different Types of Tenancies Most tenants in Oregon have month-to-month rental agreements. In this type of tenancy, tenants pay rent once a month and the rental agreement continues until either the tenant or the landlord decides to end it. In a month-to-month tenancy, rent cannot be increased during the first year after the tenancy begins (but see information below on manufactured home and floating home facilities). At any time after the first year of tena