Each province and territory can pass legislation, where the purpose is to limit rent prices increasing beyond what is affordable for most home dwellers.
According to Mike Hagar for The Globe and Mail, in BC rents can only be increased once a year for existing tenants.
[3] Rent control in Ontario formerly only applied to units that were first built or occupied before November 1, 1991.
[4] If the rental unit was in an apartment building constructed (or converted from a non-residential use) after November 1, 1991, then the rent control provisions of the Residential Tenancies Act, 2006, did not apply.
Thus, setting this policy might discourage residential mobility, actually a process that change lives and neighborhoods, since rent price increases for continuing tenants are generally smaller than for new residents.
However, they can only increase rent once within 12 months by 2%, more only if the inflation rate of the previous calendar year was higher, but not more than 5% in any case.