If the law remains silent on a particular subject, landlords and tenants can accept everything as long as it is not illegal. For example, the rental agreement usually contains conditions for whether pets are allowed, which is not covered by law. Landlords and tenants must make their own pet deals. Here are some of the things a rental agreement should include: A periodic lease agreement means that the residential lease agreement does not contain an end date. The tenant can continue to reside in the property until the tenant or landlord sends the termination of the lease. There are different types of periodic rentals, including monthly periodic rentals (for which the tenant agrees to rent monthly and pay the monthly rent) and weekly periodic rentals (for which the tenant agrees to rent week after week and pay weekly rent). . . .