Maryland Code, Real Property § 8-205.2

(b)(1) This section applies only to a landlord of a building that contains five or fewer residential dwelling units.

(2) This section does not apply to a landlord that requires a tenant, under an oral or written lease, to pay water, sewer, gas, or electric bills directly to the utility service provider.

(1) Use a written lease that provides notice that the tenant is responsible for making payments for water, sewer, gas, or electric utility services to the landlord; and

(2) Provide a copy of the water, sewer, gas, or electric utility bill to the tenant.