(a) A petition for adoption shall contain a consent to the proposed adoption. The consent shall be in writing, notarized and attached to the petition as an exhibit. If consent is obtained or given outside this State, it must be executed in accordance with this section and § 908 of this title.
(b) A written consent to adoption, duly acknowledged, must be given by any child 14 years of age or over unless the Court, upon further investigation or inquiry, deems it to be in the best interest of the child that such consent be waived. Such consent, when obtained, shall be attached to the petition as an exhibit thereto.