The American Bancorp of Illinois, Inc. All Credit Levels is a cdfi lender from American Bancorp of Illinois, Inc.. American Bancorp of Illinois, Inc. is a certified Community Development Financial Institution (CDFI) located in Oak Brook, IL, dedicated to providing financial services to economically distressed communities. They focus on empowering low-income individuals and underserved areas through a variety of lending options. Services include: business loans, mortgages. US Treasury certified CDFI CDFI in Oak Brook, IL.