Best direct lender/big bank options in Chicago?

[Jeff Davis]

Hey all - 

New investor here in the early stages of securing a mortgage for a MF on the north side of Chicago. Thought I would reach out to the community and see if anyone has any recommendations for direct/big bank lenders and/or credit unions that are good to work with in the sense that they have low fees and are easy to work with. Following some research that suggested that I get pre-approved by a credit union, mortgage broker, and direct lender/big bank to see which would be the best for my circumstances and goals. 

Any recommendations and/or advice would be greatly appreciated. Thanks!