No attorney shall appear in his representative capacity before a probate court until he has entered an appearance by filing a signed entry of appearance form or by filing a signed pleading in a pending action. An entry of appearance shall state (1) the style and case number; (2) the identity of the party for whom the appearance is made; and (3) the name and current office address, telephone number and bar number of the attorney.
Ga. R. Prob. Ct. 3.3.5