Ala. Code § 22-21-319

If and only if its certificate of incorporation or an appropriate amendment thereto (both of which must, under the terms of this article, be approved by the governing body of each authorizing subdivision) shall expressly so provide, an authority shall have, in addition to all other powers granted elsewhere in this article, the same power of eminent domain as is vested by law in any authorizing subdivision, in the same manner and under the same conditions as are provided by law for the exercise of the power of eminent domain by such authorizing subdivision; provided however, that under no circumstances may an authority exercise the power of eminent domain for the purposes of providing office facilities for any physician, dentist or other health care professional primarily for use in his private practice.