If you're in Ontario, after your lease ends, it becomes a month-to-month agreement by default. You don't have to do anything. Landlords cannot evict a tenant after a lease is finished without a valid reason.
This literally means the landlord doesn't need a reason. It just means you need to give them 30days notice.
https://www.ontario.ca/laws/statute/06r17#BK43
Secondarily, the notice period for a monthly tenancy in Ontario is still 60 days:
https://www.ontario.ca/laws/statute/06r17#BK43
This part I'm not entirely sure on. You'll definitely want to check with authority, such as a counselor etc.