Section 1912. Effect of death of fiduciary 1

In  the  event of the death, removal or disqualification of all of
  the fiduciaries before the granting of an order directing disposition of
  the real property their successor must be substituted and the proceeding
  shall continue by or against the successor.
    2. In the event of such death, removal or disqualification  after  the
  granting  of  the  order  but  before the complete execution thereof the
  successor must proceed without further order to complete all  unfinished
  matters as were required of his predecessors.
    3.  The  successor  must give such security for the performance of his
  duties as the court may require.
    4.  If  no  successor  is  appointed  the  court  may  make  an  order
  authorizing  the  fiduciary  of  the last surviving fiduciary, on giving
  such security as the court may require, to continue the proceeding or to
  complete all unfinished matters as were required of the fiduciary.