Hey Iman!
You were part of train signal right? Awesome job! I remember seeing that on GigaOm a while ago. Love the Chicago tech startup scene. I am involved in the OC scene :)
I dont live Chicago anymore, but there is a great meetup that @Brie Schmidt puts together every third Tuesday of the month at Dino's Pizza in Norwood park from 6:30 - 9:30.
Also there is another meetup here: Chicago Meetup
I will however get to finally attend the meetup since I will be in town for that December 2nd meetup! From sunny California to brisk Chicago!
:D
My suggestion using BP to look up people here on the site by location and reading a few of their bio's to see if there is a match and network from there.
If your interested in a book, I think J Scotts book was packed full of info on flips and rehab costs. That is located here: The Book on Flipping Houses
Why types of commercial property have you been involved in? Multifamily?
Hope that helped!