(a) In a guardianship proceeding in which there is no opposing party or attorney of record on whom to serve notice and copies of interrogatories, service may be made by posting notice of the intention to take depositions for a period of 10 days as provided by Section 1051.053 governing a posting of notice.
(b) When notice by posting under Subsection (a) is filed with the clerk, a copy of the interrogatories must also be filed.
(c) At the expiration of the 10-day period prescribed by Subsection (a):
(1) the depositions for which the notice was posted may be taken; and
(2) the judge may file cross-interrogatories if no person appears.