lly undertook is a key variable in determining whether there has been a material change in the guaranty agreement." Roels, 240 III. App. 3d at 582; Zirp-Bumham, LLC v. E. Terrell Associates, Inc., 356 III. App. 3d 590, 606, 826 N.E.2d 430, 292 III. Dec. 289 (2005). [FIN5] "A guarantor takes a risk in excha

the lease, the Swentos granted the landlord the right to make such extensions or modifications without impairing the validity of the guaranty. See Zirp-Bumham, 356 III. App. 3d at 605 (where language of original guaranty provided that the guarantor "guarantee[d] the landlords, its successors and assigns,