The district court, on the application of a guardian or any person interested in the estate of any ward, after such notice to persons interested therein as the judge shall direct, may authorize and require the guardian to invest the proceeds of sales, and any other of his ward's money in his hands, in real estate, or in any other manner most to the interest of all concerned therein; and the district court may make such other orders and give such directions as are needful for the management, investment and disposition of the estate and effects, as circumstances require.
Okla. Stat. tit. 30, § 4-708