(1)  On the application of a person not a party to a probate action, the Court or a judge may grant leave to that person to intervene in a probate action.

(2)  An application is to be supported by an affidavit showing the interest of the person applying in the estate of the deceased.

(3)  If leave is granted under subrule (1) , the Court or judge may give any direction as to –

(a) the service of pleadings; or

(b) the filing of an affidavit of testamentary scripts; or

(c) any other matter as may be appropriate.

(4)  A person granted leave to intervene in a probate action is to file a notice of appearance in the action before being entitled to be heard.