Notwithstanding any other provisions of these rules, the personal representative must sign the:
(a) inventory;
(b) accountings;
(c) petition for sale or confirmation of sale or encumbrance of real or personal property;
(d) petition to continue business of decedent;
(e) petition to compromise or settle claim;
(f) petition to purchase on credit;
(g) petition for discharge; and
(h) resignation of personal representative.