For any purpose stated in § 21–410(a)(1) of this subtitle, a municipality may: establish a special taxing district; impose ad valorem or special taxes; and issue bonds. For any purpose stated in § 21–410(a)(2) of this subtitle, a municipality may: establish special taxing districts; impose ad valorem or special taxes; and pledge funds under an agreement to: secure payment on MEDCO obligations; pay the costs of infrastructure improvements located in or supporting a transit–oriented development or a State hospital redevelopment; and pay the costs of operating and maintaining infrastructure improvements located in or supporting a transit–oriented development or a State hospital redevelopment. An agreement pledging funds as described in paragraph (1)(iii) of this subsection shall: be authorized by an ordinance or resolution of the municipality; be in writing; be executed on behalf of the municipality making the pledge, the Maryland Economic Development Corporation, and any other person or entity that the governing body of the municipality determines; and benefit, and be enforceable on behalf of, the holders of any MEDCO obligation secured by the agreement. Notwithstanding any other provision of law, a municipality may establish a special taxing district, issue bonds, or impose an ad valorem or special tax under this part only if a request to the municipality is made by both: the owners of at least two–thirds of the assessed valuation of the real property located in the special taxing district; and at least two–thirds of the owners of the real property located in the special taxing district. For purposes of paragraph (1)(ii) of this subsection: multiple owners of a single parcel are treated as a single owner; and a single owner of multiple parcels is treated as one owner.