An established district may expand the geographic area of the district if: A petition for inclusion is submitted from owners of at least 51% of the total number of parcels of nonexempt property and subject to subsection (b) of this section, a designated board member of a condominium or cooperative housing corporation proposed for including in the district; The petition under item (1) of this subsection is accepted by a majority vote of the board of the district corporation; and The appropriate documents, as applicable, are submitted under §12-609 of the Economic Development Article of the Annotated Code of Maryland and this subtitle and a hearing is held under § 12-609 of the Economic Development Article and this subtitle. Notwithstanding any other provisions of this subject to paragraph (2) of this subsection, a condominium or cooperative housing corporation that is located in the proposed expanded geographic area of the district may petition to join the expansion. A condominium or cooperative housing corporation described under paragraph (1) of this subsection may petition to join the expansion only if: the condominium or cooperative housing corporation is governed by a board; the board votes to join the district corporation; and the board has a representative member of the board sign the appropriate documents required under Section 10-358 under this subtitle. For the purposes of the votes cast under subsection (a)(1) of this section: A condominium or cooperative housing corporation must be considered a single parcel; and The decision reached by the board must constitute the vote of the condominium or cooperative housing corporation.