The Center may secure bonds by a trust agreement. The corporate trustee under a trust agreement may be a trust company or a bank that has the powers of a trust company in or outside the State. In addition to the provisions described in § 10–840(h) of this subtitle, the trust agreement may contain: either: a provision conveying or mortgaging all or a portion of the project; or a provision creating a collateral account; other provisions that the Center considers reasonable and proper for the security of bondholders; and a provision that restricts the individual right of action by bondholders. An expense incurred in carrying out the trust agreement or a resolution may be treated as part of the cost of the operation of a project.