Chicago contractors rule of thumb for costs to rehab

[Ashley Pimsner]

Hello BP community.

I have been looking at several 3 and 4 flats on South side of Chicago and was wondering if some local contractors could give us a general rule of thumb for costs to gut rehab each unit?

Light rehab, medium rehab, and full gut rehab...approximate costs with permits and work that can pass all city inspections and codes.

I realize there are many unknown varaiables, but hoped that this might be beneficial to both rehabbers/flippers and contractors. 

For example, If a rehabber thinks costs 30k a floor for a gut rehab in a 3 flat and contractor has to spend time driving to subject and preparing a scope of work that is 50k a unit...that is all in 90k estimated by rehabber vs 150k from contractor so this probably isn't a deal for either party.

It would be great if rehabbers had a rule of thumb for 3 levels of costs so they don't waste time pursuing a deal that isn't a deal and contractors don't waste time preparing a SOW.