A judge may appoint a guardian ad litem (GAL) when a court case involves custody or visitation rights. Any party to the case or the judge may ask for appointment of a GAL. ... You should ask the court to appoint a GAL if you or your children have been physically or sexually abused.
The length of time it takes for the guardian ad litem to make an investigation and ultimate recommendation to the court, is governed by the facts and issues in your case. As a general rule of thumb, it probably extends your case by 90-120 days to complete the investigation.
Guardians ad litem are attorneys, too, but they're trained to deal with kids. ... The judge doesn't always agree with the GAL, but the judge always recognizes the importance of the guardian ad litem in the proceedings. The GAL has a chance to give a report, question witnesses, and discuss his or her findings in court.