(a) An authority has any power necessary or convenient to carry out this chapter or to effect a purpose of this chapter.
(b) An authority created by an alternate municipality has the powers and duties of an authority in which the principal municipality has a population of more than 1.9 million.
(c) An authority may sue and be sued. An authority may not be required to give security for costs in a suit brought or prosecuted by the authority and may not be required to give a supersedeas or cost bond in an appeal of a judgment.
(d) An authority may hold, use, sell, lease, dispose of, and acquire, by any means, property and licenses, patents, rights, and other interests necessary, convenient, or useful to the exercise of any power under this chapter. Before an authority acquires an interest in real property for more than $20,000, the board shall have the property appraised by two appraisers working independently of each other.
(e) An authority may sell, lease, or dispose of in another manner:
(1) any right, interest, or property of the authority that is not needed for, or, if a lease, is inconsistent with, the efficient operation and maintenance of the transit authority system; or
(2) at any time, surplus materials or other property that is not needed for the requirements of the authority or for carrying out a power under this chapter.