The two neutrals a court most often appoints in a contested custody case - what a guardian ad litem does and does not do, how it differs from a child's attorney and from a custody evaluator, who pays, what they may see, and how their reports are used at trial.
A guardian ad litem ("for the suit") is a person the court appoints to represent a child's interests in a case about that child - most often a contested custody or visitation dispute, a dependency or abuse case, or a termination or adoption proceeding. The appointment lasts for the case only. In most states the guardian ad litem is a lawyer, in others a trained volunteer or a court-appointed special advocate, and the role differs from that of a lawyer for the child: an attorney for the child advocates the child's expressed wishes; a guardian ad litem investigates and reports what they conclude the child's best interests require, which may not be what the child wants. Some states appoint both, and some let the court choose which role fits the child's age.
The guardian ad litem interviews the child, the parents and others who know the family, visits each home, reviews school, medical and court records, and may speak to counsellors and teachers; the order of appointment gives them access to records that would otherwise be confidential. They then report to the court, usually in writing, with findings and a recommendation on custody and parenting time. The report is evidence, not a decision: the judge is not bound by it, the parties may cross-examine the guardian ad litem at trial, and a parent who disagrees can call their own witnesses. Because the report often carries great weight in practice, how a parent deals with the guardian ad litem - candidly, promptly and without coaching the child - frequently matters more than any filing.
A custody evaluator is different again: a licensed psychologist or other mental-health professional appointed under a court rule to conduct a forensic evaluation, which may include psychological testing of the parents, structured observation of each parent with the child, and collateral interviews, ending in a written evaluation with recommendations. Evaluations are expensive and slow, are ordered mainly where there are allegations of abuse, mental illness, substance misuse or alienation, and are subject to the same cross-examination and rebuttal as any expert report. Fees for both roles are set by the court and allocated between the parents, with the county or the state paying in indigent and dependency cases. The child's statements to either neutral are generally not privileged, and a parent who wants the child heard directly may instead ask for a private interview of the child by the judge, which most states allow at the court's discretion.
A parent in a case where a guardian ad litem or evaluator has been appointed is at the stage where the outcome is being shaped outside the courtroom, and a lawyer's most useful work is often preparing the parent for the interviews and home visit, assembling the records the neutral will ask for, and deciding whether to seek a second opinion or a rebuttal expert when the report is adverse. A parent who cannot afford a lawyer should at least ask the court to appoint the neutral and allocate the fee, rather than agreeing to a private evaluator whose cost may be unrecoverable.
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