As a curiosity, since you're probably better versed in this than I am, does the situation change if you yourself didn't live there? I'm pretty sure around here

As a curiosity, since you're probably better versed in this than I am, does the situation change if you yourself didn't live there? I'm pretty sure around here (300kperson city in Canada), the rules are different if one of the roommates is the owner or if it's a purely rental property... which seemed even more confusing!