Under Ohio law, unmarried mothers automatically have sole custody of their children, even after paternity is established. In Ohio, if you were never married when your child was born, the Mother is the Sole Legal Custodian.This page will walk you through the process of filling out and filing these forms. What this file contains. Instructions: Check local court rules to determine when this form must be filed. It is a credibility test. Joslyn Law Firm can help you in your family law matter, call (888) USA-RIGHTS or contact us online to schedule your free consultation about your legal issue. Parenting Proceeding Affidavit: List the children involved in your case, their current and former residences, and any prior cases involving them. Complete an Acknowledgment Affidavit: This process typically begins at the child's birth. The purpose of the affidavit is to affirm the facts stated regarding their non-cohabitation for legal purposes.