This document provides an overview of family relations topics for OFWs including marriage, support obligations, and parental authority. It defines marriage under Philippine law and outlines the essential and formal requisites for a valid marriage. It discusses support obligations between spouses, parents and children, and siblings. Parental authority is defined as caring for and developing children's moral, mental, and physical well-being. The document outlines rules regarding the joint exercise of parental authority and child custody in cases of parental separation.