(735 ILCS 5/6-104) (from Ch. 110, par. 6-104)
    Sec. 6-104. Interest of plaintiff. No person shall recover in ejectment unless he or she has, at the time of commencing the action, a valid subsisting interest in the premises claimed, and a right to recover the same, or to recover the possession thereof, or of some share, interest or portion thereof, to be proved and established at the trial.
(Source: P.A. 82-280.)