Federal emergency management teams began documenting flood damage in Cook, Lake and DuPage Counties on Monday.
Data collected during these assessments will be included in Gov. Quinn's request for federal assistance.
If approved, federal assistance could include grants and low interest loans to flood victims.
Cook County Assessor Joseph Berrios will host outreach sessions to help taxpayers affected by flooding.
"My staff will be on hand at these events to help all taxpayers with the appeals process as they document and record flood damages," Berrios said.
Next week, FEMA and IEMA will be meeting with Gov. Quinn to determine if there is enough damage to support federal assistance.