According to Illinois Legal Aid, anyone receiving a summons to appear in court should contact a lawyer. A summons is an official notice of a lawsuit and an order to come to court. Ignoring the summons increases the likelihood of losing the lawsuit.
Illinois Legal Aid explains that a summons must be properly served by the sheriff, a private process server, or Certified Mail. If a lawsuit involves multiple defendants, each defendant must be served separately. Anyone who believes he has been improperly served may ask the judge to delay the case until proper service has been accomplished. A summons to appear in court should never be ignored.