New Jersey Statutes Appendix - Former Title 3A Administration of Estates Decedents and Others 3A § 20-8

A guardian of a mental incompetent may, if the superior court approve of it, mortgage or pledge real or personal estate for the purpose of borrowing money to pay the debts of such mental incompetent, or discharging any encumbrance on his property, or for his maintenance, or for the preservation of his estate, or for the payment of any advances made by the guardian on account of any of the above-mentioned purposes when such advances have been made within 6 years of the commencement of the action to secure such approval.