Like divorce, annulment is the legal process for ending a marriage. But that's where the similarities end since annulment is only used to end an invalid marriage or one that "should not be recognized by the state," according to information provided by Illinois Pro Bono. Still, divorce attorneys in Chicago are qualified to answer questions you may have about annulments.
Annulments are rarely ever used in Illinois because it is much more difficult to prove grounds for annulment than for a dissolution of marriage (the legal term for divorce in Illinois), according to the Southern Illinois University School of Law (PDF).

