65 ILCS 5/11-31-1.1

No owner of property who held title to the property when property taxes became delinquent and which taxes were still delinquent at the time of the foreclosure of a demolition lien by the corporate authorities of a municipality or the acceptance of a deed of conveyance in lieu of foreclosing such lien and no person, firm, association, corporation or other entity related to or associated with any such owner shall within 10 years after title vests in the municipality reacquire any right, title or interest in or to such property.