On verifying that the requirements of § 20–603 of this subtitle have been complied with, the chair of the County Council shall promptly cause a local law to be introduced that proposes the change of boundaries that the petition requests. The local law shall: describe by clearly ascertained boundary lines, by landmarks, and by other well–known terms consistent with the description of other areas included in the regional district, the exact area proposed to be included in the change; and include a brief and accurate description of the conditions and circumstances applicable to the change of boundaries the petition requests.