e of the additional tenant’s occupancy of the rental unit prior to the effective date of this amendment, the landlord shall not be able to increase the rent pursuant to this Subsection unless the landlord had notified the tenant of the increase within 60 days of the effective date of this amendment; (iii) This Subsection shall not apply for the first minor dependent child (or first minor dependent children of a multiple birth) added to an existing tenancy. (b) The rental unit shall not be eligible for a rent increase until the additional tenant has maintained residence in the rental unit for a minimum of thirty consecutive days.