In Toronto atm, there's a rule where, if you're a family you can't have guests over at all, even if you live in a house split into two apartments, like family in the basement, family upstairs, you're technically not allowed to visit eachother within the same household.

Also, if you're single and don't live with anyone, you're only allowed to associate yourself with 1 family, whether it's your own, or some other family. Otherwise, nada.