When a guardian applies for authority to lease the real property of a ward, the duties of the appraisers shall be the same as in proceedings to sell real property belonging to the ward under sections 2127.22 and 2127.23 of the Revised Code, except that they shall appraise not only the value of the real property but also the value of the annual rental upon the terms, covenants, conditions, and stipulations of the proposed lease. If the proposed lease is for the mining or removal of mineral or other substances, the appraisers shall report in writing to the probate court their opinion as to the probability of the lands containing those substances, the probable quantity of the substances, and the terms upon which it would be advantageous to the ward to lease the lands for mining or removing the substances. In their report the appraisers shall state whether in their opinion, the proposed lease will be for the best interests of the ward, those whom the ward is required by law to support, or the estate. They may also suggest any change in the terms, covenants, and stipulations proposed in the petition. The report of the appraisers shall be returned on or before the day named in the order for the final hearing of the case. On the return of the appraisement, the guardian need not give an additional bond, but in case of sale under the terms of the lease, the guardian shall give the additional bond before the confirmation of the sale.