§ 388. Guardian ad litem. In any proceeding to register title, the court may make an order appointing a disinterested attorney, other than the official examiner of title by whom the title was examined and reported and certified, to act as guardian ad litem for all minor persons and for all persons under other disability appearing by the petition or by the official examiner's report of title to have interests adverse to those of the petitioner. The petition for the appointment of said guardian ad litem may be made by the petitioner ex parte at any time during the pendency of the proceeding. The guardian ad litem thus appointed upon the application of the petitioner may be the attorney general of the state of New York, unless it appears to the court that the state of New York has or claims some interest adverse to that of the person or persons for whom the attorney general would thus be appointed guardian ad litem. The question as to the existence of such adverse claim or interest shall be for the court; and an order appointing the attorney general as such guardian ad litem shall be sufficient proof that no such adverse claim or interest exists. Such an order shall be conclusive as a matter of law after thirty days from the time when a certified copy of the final order or judgment of registration in the proceeding is filed in the office of the registrar of the county in which the property is situated. It shall be the duty of such guardian ad litem actively to ascertain and protect as is reasonably possible, the interest of all minor parties to the proceeding and all other parties under disability. The compensation of such guardian shall be one hundred dollars, unless the court directs otherwise; but the attorney general shall not receive any compensation for acting as such guardian ad litem. No issue requiring a trial shall be raised by the answer of a guardian ad litem of any minor party or party under other disability unless it shall affirmatively appear by the official examiner's report or by answer of the guardian ad litem that such minor party or party under other disability has an interest adverse to the title or interest sought to be registered.