4. Any lease or rental agreement for residential premises entered into
by two or more tenants shall be construed to permit occupancy by
tenants, immediate family of tenants, occupants and dependent children
of occupants; provided that the total number of tenants and occupants,
excluding occupants' dependent children, does not exceed the number of
tenants specified in the current lease or rental agreement, and that at
least one tenant or a tenants' spouse occupies the premises as his
primary residence.