Sec. 34. SERVICE ON ATTORNEY
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If any attorney shall have entered his appearance of record for any party in any proceeding in probate, all citations and notices required to be served on the party in such proceeding shall be served on the attorney, and such service shall be in lieu of service upon the party for whom the attorney appears. All notices served on attorneys in accordance with this section may be served by registered or certified mail or by delivery to the attorney in person. They may be served by a party to the proceeding or his attorney of record, or by the proper sheriff or constable, or by any other person competent to testify. A written statement by an attorney of record, or the return of the officer, or the affidavit of any other person showing service shall be prima facie evidence of the fact of service.