Call (877) 426-6515 for suburban Cook County's Rental Assistance Call Center. The center handles calls related to rent, security deposits, utilities, and mortgage assistance. It is staffed Monday through Friday, 8:30 a.m. to 4:30 p.m. The Illinois Foreclosure Prevention Line is at (855) 533-7411. It is open Monday through Friday, 9 a.m. to 4 p.m.