In this section the following words have the meanings indicated. “Affected dwelling unit” has the meaning stated in § 7–309 of the Public Utilities Article. “Landlord” has the meaning stated in § 7–309 of the Public Utilities Article. “Tenant” has the meaning stated in § 7–309 of the Public Utilities Article. “Utility service” has the meaning stated in § 7–309 of the Public Utilities Article. “Utility service provider” has the meaning stated in § 7–309 of the Public Utilities Article. A tenant may deduct from rent due to a landlord the amount of payments made to a utility service provider for utility service if: An oral or written lease for an affected dwelling unit requires the landlord to pay the utility bill; and The tenant pays all or part of the utility bill, including payments made on a new utility service account; or The tenant pays any security deposit required to obtain a new utility service account. A tenant’s rights under this section may not be waived in any lease.