But in Montreal, as in SF, if the tenant leaves you can adjust the rent back to &quot;market rates&quot;, which does benefit a landlord who renovates. Also, a good percentage of the new &quot;condo&quot; towers going up are specifically rental only.<p>The more perverse side effect of rent control shows up in the cases where rental tenants on a 30 year old lease, paying peanuts per month is posting their apartment (or multiple apartments) on AirBnB at market rates. All the while, the property gets much more wear and tear, increasing maintenance costs.