2. No landlord of premises or units to which this section is
applicable or such landlord's agent shall substantially alter the terms
of the tenancy in retaliation for any actions set forth in paragraphs a,
b, and c of subdivision one of this section. Substantial alteration
shall include, but is not limited to, the refusal to continue a tenancy
of the tenant, upon expiration of the tenant's lease, to renew the lease
or offer a new lease, or offering a new lease with an unreasonable rent
increase; provided, however, that a landlord shall not be required under
this section to offer a new lease or a lease renewal for a term greater
than one year.