period, the tenant shall not be required to surrender the housing accommodation until 60 days after receipt of such lease offer. Notwithstanding that the rent charged and paid during the first lease term may have been less than such initial legal regulated rent, the owner may request that the next lease rental be the initial legal regulated rent plus the allowable increase established by the Rent Guidelines Board, and such other rent increases as are authorized pursuant to section 2522.4 of this Title.