When child custody, visitation, or support is contested in a divorce or other legal proceeding, courts may appoint a guardian ad litem (often an attorney with experience in family law matters) to investigate and make independent, objective recommendations to the court of what is in the best interest of the child. The guardian ad litem will typically interview the child, the parents, and other people who have contact with the child, and may subpoena witnesses to testify at court hearings, examine and cross-examine witnesses at hearings. The guardian ad litem may also testify regarding her investigation of the circumstances, conclusions, and recommendations to the court.

In Tennessee, when child custody, visitation, or support is contested in a divorce or other legal proceeding, the court has the authority to appoint a guardian ad litem. This individual is often an attorney with experience in family law who serves as an independent investigator and advocate for the child's best interests. The guardian ad litem's role includes interviewing the child, parents, and others in the child's life, as well as subpoenaing and questioning witnesses during court hearings. They are tasked with providing the court with a detailed report of their findings, conclusions, and recommendations based on their investigation. The guardian ad litem's testimony and report can significantly influence the court's decisions regarding custody, visitation, and support to ensure that the child's welfare is the primary concern.