No transfers of development rights shall be permitted, other than to the owners of land eligible for development as a PRD or owners of land eligible for development as a retirement community in accordance with the procedures set forth in Subsection A; provided, however, that Birmingham Township may acquire transferable development rights by purchase or gift, following the procedures set forth in Subsection A(2)(a), (b), (c), (e), (f) and (g). In such event, the rights so acquired may be canceled by the Township as transferee or may be held independent of any designated transferee parcel of land for any length of time in anticipation of ultimate transfer to the owner of a tract of land located within the planned residential development areas of the Township.