You must use a housing rental agreement to indicate what is expected of you as a landlord and your tenants. Since many provinces require landlords to use their standard leases, you can also add additional terms of additional protection and tailor your lease to the purpose of your property. For example, the Ontario Residential Tenant Agreements allows for the addition of additional terms in accordance with section 15. Note that it is very important that the additional terms do not conflict with the terms of the standard rental agreement. If the province offers a housing rental form, the landlord must use that form and not their own. In some provinces, the tenant has the right to withhold monthly rent if the landlord does not provide a copy of the standard lease agreement.