Depends on market. In Vancouver existing rentals are controlled until you move, the house sells, or you are reno-evicted. This involves evicting the tenant to "fix up the suite" and then renting it out at a much higher rate.

There is also the move to evict for a " family member" to move in but often this is abused to get low paying tenants out.

New mortgages are much more than existing rent here. As much as renters go through credit checks, I think landlords should too as you don't want to rent a place where they can't afford the interest rate increases. Often they cheap out on repairs and usually sees the place being sold or one of the above abuses of the evictions to get a higher paying tenant in.

The market is really tight in places like Vancouver and Toronto. The interest rate hikes will eventually catch up to most renters as properties are moved/sold.