(a) Petition - The petition shall contain all declarations and information required by Section 401 of the Adoption Act and any additional information required by local rules.(b) Notice or Consent-Parents of Child. Notice as provided by Rule 15.6 shall be given to each parent unless(1) he or she has consented in writing to the adoption and waived notice of hearing, or(2) he or she has voluntarily relinquished his or her parental rights in a proceeding under Rule 15.2 or Rule 15:3, or(3) his or her parental rights have been involuntarily terminated in a proceeding under Rule 15.4.(c) Investigation - A petition for adoption shall be subject to investigation as prescribed by local rules. The investigation report shall cover the matters alleged in the petition, any other matters that may affect the welfare of the child, and the information required by Sections 335 and 424 of the Adoption Act.(d) Disclosure of Fees and Costs - At the hearing there shall be offered in evidence a report, certified by counsel for the petitioner, setting forth the amount of fees and expenses paid or to be paid to counsel, and any other fees, costs and expenses paid or to be paid to an intermediary or any other person or institution, in connection with the adoption.(e) Adult Change of Name - When the person to be adopted is over the age of 18 years and desires to assume the surname of the adopting parent or parents, evidence showing compliance with the law relating to change of name must be introduced before a decree will be made.Chest. Cnty. Ct. Comm. Plea. R. 15.5