A District of Columbia Affidavit Supportive of Petition by Mother is a legal document used in the District of Columbia when a mother wishes to petition for custody of her child. This document serves as evidence that the mother is fit and capable of providing a safe and stable environment for the child. It is also used to prove that the mother has a genuine interest in the child's welfare. There are two types of District of Columbia Affidavit Supportive of Petition by Mother: the Joint Petition for Custody and the Single Petition for Custody. The Joint Petition for Custody requires the signatures of both parents, while the Single Petition for Custody requires the signature of only one parent. Both documents require the mother to provide information about her financial situation, her relationship with the child, and her parenting plan. The District of Columbia Affidavit Supportive of Petition by Mother must be signed and notarized before it can be submitted to the court.