The register of the Essex probate and family court may, with the approval of the chief justice of the probate and family court, designate 1 employee as deputy assistant register with the same powers as an assistant register and with the approval of the chief justice remove a deputy assistant register. The deputy assistant register shall receive additional compensation in an amount equal to 15 per cent of the annual salary of the Essex county register of probate.
Mass. Gen. Laws ch. 217, § 29J