The court may enter an order authorizing the guardian to execute and deliver a note and mortgage, under such tenor and terms as the court will approve, for the purpose of securing payment of any remaining cost of such a homestead. Any note and mortgage given by a guardian under the provisions of this section shall, if authorized by the court as provided for in this section, be endorsed "approved" by the judge. When so authorized and endorsed, the note and mortgage shall be a binding obligation against the ward and the estate of the ward until fully paid. The ward, if subsequently restored to competency to transact business, shall be held firmly bound by the note and mortgage in the same manner and to the same extent as though the ward had given the homestead purchase-money note and mortgage.
Okla. Stat. tit. 30, § 4-709