Lis Pendens - Limitation as to Public Officers. A notice of lis pendens under Illinois law for filing in the public records (the office of the county recorder) to provide constructive notice to third parties.If you have received a notice of lis pendens in Illinois, contact real estate attorney Marc J. Blumenthal at (847) 8087092 for legal help. Lis Pendens--Operative date of notice. All Lis Pendens notices are now required to be filed electronically with the Department of Financial and Professional Regulation. Visit your county recorder's office and ask to file a Notice of Lis Pendens. Understand Its Purpose And When It Can Be Filed. When using these Lis Pendens forms, the subject real estate must be physically located in Cook County.