Residential Tenancies Act s. 36

(1) A landlord may require a person who is not a tenant but who
is living in residential premises occupied by a tenant to vacate the
premises by serving the person with a notice to vacate.
(2) The notice to vacate under subsection (1) must give the person
living in the premises at least 14 days to vacate the premises from
the day that the notice is served.
(3) A notice to vacate must
(a) be in writing,
(b) be signed by the landlord or the landlord's agent, and
(c) set out the time and date by which the person must vacate.
(4) If the person on whom a notice to vacate is served fails to
vacate the premises by the time and date specified in the notice, the
landlord may apply to a court for an order directing the person to
vacate the premises.
(5) An application under subsection (4) must be supported by an
affidavit setting out the following:
(a) a copy of the notice to vacat e and the time, date and manner
in which it was served;
(b) the reasons for the person's failure to vacate the premises, to
the extent known.

SS Houses with a Secondary Suite

36 Notice to vacate