The Massachusetts Petition For Adoption And Affidavit of Petitioner(s) is a legal document that is used to initiate the adoption process in the Commonwealth of Massachusetts. This document is a required part of the Massachusetts adoption process and must be completed by the petitioner(s) and signed by a court officer. The Petition For Adoption is a formal request to the court that the petitioner(s) be allowed to adopt a child. The Affidavit of Petitioner(s) is an affidavit, signed by the petitioner(s), that the petitioner(s) has the legal right and capacity to adopt the child. There are two types of Massachusetts Petition For Adoption And Affidavit of Petitioner(s): private adoption and agency adoption. In a private adoption, the petitioner(s) will file the Petition For Adoption and Affidavit of Petitioner(s) with a probate court. In an agency adoption, the petitioner(s) will file the Petition For Adoption and Affidavit of Petitioner(s) with an adoption agency. The adoption agency will then forward the Petition and Affidavit to the court for approval.