Cook County Lis Pendens Form. Fill in the blank form formatted to comply with all recording and content requirements.Do I have to enter all of my property information online? No. The blank forms are downloaded to your computer and you fill them out there, at your convenience. All Illinois Courts must accept these forms. All forms below with a "fillable icon" are documents that you can open "on-line", fill in the appropriate fields and then print on your printer.