The Ontario lease must contain the following data: Get the new standard form for the lease under www.forms.ssb.gov.on.ca/mbs/ssb/forms/ssbforms.nsf/FormDetail?OpenForm&ACT=RDR&TAB=PROFILE&SRCH=&ENV=WWE&TIT=2229E&NO=047-2229E. The form can be filled, printed and stored online or you can print and fill it out offline For more information on the new standard rental form, check the website of the Ministry of Housing – www.mah.gov.on.ca/Page18704.asp. The new form contains binding clauses and standardised information that landlords must provide to tenants who entered into a written lease on or after 30 April 2018. Landlords can add clauses to section 15 of the new standard rental form to address terms and/or describe responsibilities that are unique to their rental agreement or rental unit/property. The main purpose of this contract is to define the rental conditions; the sum of the monthly rent; the terms of payment for public services; the conditions of maintenance of the devices, etc. The agreement is very important in case of dispute. All landlords renting in Ontario should be aware that the province has introduced a new standard lease form to be used for written residential tenancy agreements in Ontario that will be entered into on and after April 30, 2018. Please terminate the use of your current lease or lease and obtain a copy of the standard rental form issued by the Ministry of Housing. If both parties sign the lease, it is kept for the duration of the rent for the personal minutes of each party. If the lessor and the tenant have concluded other agreements or obligations, these documents must be attached.