Massachusetts General Laws Part III. Courts, Judicial Officers and Proceedings in Civil Cases (Ch. 211-262) Ch. 221, § 17

An authorized electronic rendering or a facsimile of the signature of the clerk of any court in the commonwealth, imprinted by him upon any writ, summons, subpoena, order of notice or order of attachment, except executions, shall have the same validity as his written signature.

The name of an assistant clerk of any court, followed by the designation “assistant clerk” shall be a sufficient official signature.