be individuals; and if there are only two such, each must own real property to the full amount of the bond, free from incumbrances, and over and above all his other existing lia bilities and exclusive of property exempt from execution. If there be three or more sureties, it shall suffice if they collectively own real property in double the amount of the bond and similarly circumstanced as above. HScaCT [1817-2; 1901-1.] But in any case the bond may be made by a corporation authorized by law to execute fidelity bonds. [2203-1.] SECTION  416 . Qualification of Sureties . — Such bond shall bear an indorsement of the proper provincial treasurer stating that after due investigation and to the best of his knowledge and belief the sureties, if individuals, are qualified as by law required . The sureties themselves shall also justify to the same effect upon oath before a judge of the Court of First Instance of the district, or in his absence, before the provincial fiscal. [1817-1; 1901-1.] SECTION  417 . Approval and Preservation of Bond. — Upon the execution of any such bond, the clerk of the court shall take a copy for preservation in his own office and shall transmit the original to the Insular Auditor, which, after receiving his approval,  shall be forwarded to the Insular Treasurer for preservation. [1817-1; 1901-1.] SECTION  418 . Renewal or Strengthening of Bond.  — When it shall appear to the judge of first instance in any province, or to the judges of the Supreme Court in the city of Manila, that any such bond is risky or insufficient, an order shall be made requiring  a new bond or additional security to be given within a period to be specified therein; and if the same is not duly complied with, the office shall be deemed to have been vacated and another person shall be appointed thereto. IcSEAH [136-26.] SECTION  419 . Right of Bonded Officer to Require Bond from Deputy or Assistant . — A sheriff or other accountable official may require any of his deputies or assistants, not bonded in the fidelity fund, to give an adequate personal bond as security against l oss by reason of any wrongdoing on the part of such deputy or assistant. The taking of such security shall in no wise impair the independent civil Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011 133