[mitthrowaway2]

It's common for rental suites. If you rent a whole home, you can usually invite whoever you want. But if you live in a rented room, a sharehouse, a rented basement suite, etc, then no-guest provisions are very common. These rental suites are common in expensive cities.

For example, Surrey BC:

https://vancouver.craigslist.org/rds/roo/d/surrey-upper-leve...

(I just picked this randomly, it didn't take more than a minute to find).

"Single occupancy only, no guests or visitors please."

[TylerE]

In the US (and probably Canada as well) that is blatantly false.

They can bar specific individuals with reason, but not a blanket ban like that.

[tristor]

Actually, this is pretty common in the US as well. Generally though, they structure it (more reasonably) around parking provisions, and have visitor parking limited to 2 hours and no overnight guests. This is /incredibly common/ in rental units in the US, partly because landlords charge a fee per occupant for shared services like sewer, trash, etc. and have limited parking.

Nearly any rental, including whole apartments, will have rules around overnight guests in the lease with some limitation if not an outright ban to prevent shadow occupancy or subletting.

[mitthrowaway2]

I don't know about the US, but this is perfectly legal in Canada for a rental in a shared living space (sharing a kitchen or a bathroom with the landlord). The rules are quite different in that case as you are not legally considered a "tenant". It's a very common arrangement, and I know people who have lost their rental for having a visitor.