What an unrealistic comparison. No landlord would ever do that, nor would the roommate agree to the changes that the landlord would attempt to make even if that is something the landlord would do.
Aren't you in Vancouver? I've had landlords here that would absolutely do something like that. Many slumlords would do anything they think they can get away with.
Nope. I've never been to Canuckistan. If you're saying this is typical behaviour of landlords in Canadia, then it makes me have second thoughts if universal health care is worth it.