Whether requested by law, or not, it is always advisable to lease a unit with a written agreement.
Sample forms of “residential lease agreements” can be found on the internet:
All residential lease agreements provide the option of including additional terms or items that the renter and/or landlord deem important to note, such as garden and lawn maintenance, leaf and snow removal, use of any public areas and a diplomatic waiver. Once signed or initialed by both the renter and landlord, these terms are considered part of the legal agreement. Like any contract, the residential lease agreement should be read carefully to ensure that all provisions are understood. Once the lease is signed, the first cheque or post-dated cheques are provided to the landlord.