District of Columbia Affidavit Supportive of Petition Father is a sworn statement or affidavit that is used to support a petition for child custody or visitation rights in the District of Columbia. This affidavit is a declaration under penalty of perjury that the petitioner, who is typically the child's father, is the biological, adoptive, or legal father of the child and is legally and financially responsible for the child. The affidavit must be completed and signed by the petitioner, as well as two witnesses who are not related to the petitioner. The witnesses must be able to testify to the truthfulness of the statements made in the affidavit. There are two types of District of Columbia Affidavit Supportive of Petition Father: 1. Affidavit of Paternity: This affidavit is used when the petitioner is the biological father of the child. 2. Affidavit of Adoption or Legal Guardianship: This affidavit is used when the petitioner is the legal guardian or adoptive parent of the child.