(a) Whether before or after the certificates of approval of its development plan required by section two hundred three of this article have been issued, acquire real property or secure options in its own name or in the name of nominees to acquire real property, by gift, grant, lease, purchase or otherwise, or awards in condemnation made or to be made therefor;

(b) After a certificate of approval of condemnation with respect to the real property in question has been issued pursuant to section two hundred sixteen of this article, acquire all or any portion of the real property included in such certificate of approval of condemnation not already under contracts of sale or option to it, by condemnation in the manner provided by the condemnation law, with such departures therefrom as are provided in this article. 2. A city may, upon request by a redevelopment corporation, and after a certificate of approval of condemnation with respect to the real property in question has been issued pursuant to section two hundred sixteen of this article, acquire, or obligate itself to acquire, for such redevelopment corporation any real property included in such certificate of approval of condemnation, by gift, grant, lease, purchase, condemnation, or otherwise, according to the provisions of any appropriate general, special or local law applicable to the acquisition of real property by the city. Real property acquired by a city for a redevelopment corporation shall be conveyed by such city to the redevelopment corporation upon payment to the city of all sums expended or required to be expended by the city in the acquisition of such real property. 3. The provisions of this article with respect to the condemnation of real property by or for a redevelopment corporation or by a city for a redevelopment corporation shall prevail over the provisions of any other general, special or local law.