If the number of people occupying the rental unit on a continuing basis contravenes health, safety or housing standards required by law, the landlord may issue a notice. Before any action is taken, determine whether the number of occupants constitutes overcrowding as the floor area and occupant ratio is quite generous. If it is indeed overcrowding a notice may be given. The termination date must not be earlier than the 20th day after notice is given; set out the details or the grounds for termination; and require the tenant to reduce the number of persons occupying the rental unit to comply with health, safety and housing standards within 7 days.