You would have to check what the law actually says before you buy a place to rent it out. You could actually look for the Ontario tenants board and find out from them, if you are a tenant and don't pay, what can be done to you. Start here:
http://www.ltb.gov.on.ca/en/Key_Information/STEL02_111483.htmlFrom what I know from people I've known, one woman was a day late with the rent and she immediately had a letter from the landlord evicting her with a 14 day notice. She talked to him and paid and it was fine but he said he always delivered eviction letters just in case. That was in Ontario. The other 2 cases were in Alberta, one building where I was living, the tenant forgot a pot on the stove and went to sleep, the fire department was called because of the smoke and they had to break down the door, the tenant was fine and there was no actual fire luckily but he was out of there pretty much the next day.
Another one I know was a friend of mine. He had a habit of being late with the rent and his landlord was a very nice guy, he'd just say pay when you can. Then at some point, his fridge breaks down and as is most common in Canada, the fridge and stove are the property and responsibility of the landlord, he phoned the landlord and asked for the fridge to be repaired or replaced. The landlord kindly reminded him that it was the 7th of the month and he still owed half the months rent but if he'd pay it, he'd have the money to get him another fridge. The guy was getting so used to being able to pay when he wanted that he thought this was not a reasonable request and phoned the tenants association. The tenants association advised him that being late with the rent was not a reason for the landlord to not fix the fridge so he put in a complaint, also about some loose tiles in the bathroom. Of course the next thing that happened was that the landlord showed up and said, here I am to replace your fridge and fix your tiles and here is your 14 day eviction notice for continually being late with the rent. He talked the landlord into staying a few extra days until the end of the month. I don't know what would have happened if he'd tried to fight it.