RSA 170-B:16 Petition for Adoption.

I. A proceeding to adopt a minor child, other than a related minor child, shall be commenced by the filing of a petition within 30 days after such minor child has been placed in an adoptive home, provided that such petition may be filed at a later date by leave of court upon a showing that the failure to file such petition within such 30-day period was not due to the petitioners' culpable negligence or their willful disregard of the provisions of this section.
II. A petition to adopt an adult or a related minor child may be filed at any time.
III. The following information shall accompany every petition for adoption:
(a) Written surrenders as required by RSA 170-B:5.
(b) The name of any person whose surrender is required but who has not surrendered his or her