394. Challenge to the maintainability of the proceeding and other objections.

(i) challenge the maintainability of the inventory proceeding;
(ii) contend that any of the parties to the inventory is under disability;
(iii) dispute their own locus standi or the locus standi of any other party who has been served with summon, unless they have been served with the summon as creditors;
(iv) challenge the competence of the head of family to hold such office;
(v) apply that the partition should be restricted to certain assets on the ground that the remaining assets have been legally partitioned only.