; (D) the preservation and rehabilitation of historic structures, archaeological sites, and natural resources related to the heritage area; (E) promoting cultural, traditional, and nature-themed events and attractions in the heritage area; and (F) carrying out other actions that the coordinating entity determines appropriate to fulfill the purposes of this Act, consistent with the management plan. (d) Prohibition on acquiring real property The coordinating entity may not use Federal funds received under this Act to acquire real property or an interest in real property. (e) Public meetings The coordinating entity shall hold public meetings at least annually regarding the implementation of the management plan. (f) Annual reports and audits (1) Annual reports For any year in which the management entity receives Federal funds under this Act, the coordinating entity shall submit an annual report to the Secretary setting forth accomplishments, expenses and income, and each entity to which any grant was made by the management entity. (2) Audit The management entity shall make available to the Secretary for audit all records relating to the expenditure of Federal funds and any matching funds. The management entity shall also require, for all agreements authorizing expenditure of Federal funds by other organizations, that the receiving organization make available to the Secretary for audit all records concerning the expenditure of those funds. 6. Duties of the secretary (a) Technical and financial assistance The Secretary may, upon request of the coordinating entity, provide technical and financial assistance to develop and implement the management plan. (b) Priority In providing assistance under subsection (a), the Secretary shall give priority to actions that facilitate— (1) the conservation and promotion of the significant natural, cultural, historical, archaeological, scenic, and outdoor recreational resources of the heritage area