Buying a foreclosure/REO property without an agent?

[Mitchell J.]

Is it possible to purchase a foreclosure property without an agent (via no agency / ministerial acts) in Chicago?

I have purchased other properties without an agent... but not sure if the rules are different for foreclosures.  I found the property myself, and would not prefer to have a buyer's agent essentially collect 2.5-3% from the seller (the bank in this situation) for really doing no work.