An appraiser shall perform his duty expeditiously. The appraisal shall be in columnar form, and state generally each item that has been appraised and the value of each item in dollars and cents. The appraisal shall contain a statement signed and verified by the appraisers certifying that they have impartially valued the property described in the appraisal to the best of their skill and judgment. The appraisal shall immediately on completion and verification be delivered to the personal representative.