A summons is an official court document, signed by the clerk, giving legal notice of a lawsuit to the party being sued. Upon 'being served' with the summons (receiving the summons), the party is legally obligated to respond to the petition or complaint filed by the suing party, or face the prospect of a default judgment being rendered against them for the relief sought. This form, a Summons - Probate is a summons for a civil action of the kind stated, or a general use summons. USLF control no. CA-DE-125