Md. Code, Tax - Property § 9–402

(a) In this section, “county” means:

(1) Anne Arundel County;

(2) Frederick County;

(3) Howard County;

(4) Montgomery County; and

(5) Prince George’s County.

(b) Instead of a property tax credit, the governing body of a county may provide, by law, a grant to any eligible elderly or disabled renter.

(c) The governing body of a county may establish any qualification for the grant, including an income limit.

(d) The governing body of a county shall fund the grant from the appropriate county source.

(e) This section may not be construed to deny the governing body of a county the power to alter, amend, or repeal any law adopted under this section.