In order to comply with the law, rentals must include a rental agreement before starting. Apart from the law, rental agreements are also important in protecting each party during the lease. So for the sake of both parties involved, rental agreements are entirely necessary to renting property. Essentially, rental agreements are contracts that define the many terms that come into play during the rental. After both parties consent to an agreement, the rental is officially binding for all legal purposes. Without being written properly, however, the rental agreement can still prove inadequate during the lease, and also may not hold in court. If the landlord and tenant are not willing to use a lawyer, free rental agreements can be used to make sure the lease is created in accordance with legal requirements.