In all school districts where the accounts are audited by borough or township auditors, the auditors may employ an attorney whenever the same is deemed advisable. The compensation of such attorney shall be fixed by the auditors, and shall not exceed the sum payable to one auditor for the making of the annual audit, unless additional compensation shall be specially allowed by a court of record in connection with any proceeding before such court, and shall be payable by the school district out of the general fund of the district.