@Shelly Forte is organizing a BP Meetup although it's in the NW suburbs (very far from you).I also organize a Lender Meetup every third or fourth Wednesday of the month in Downers Grove.

Third, in my neck of the woods there would be water credit concerns, etc....

Many Buyers and Buyers agents here are skeptical of the "Joe Schmo" homeowner who "took care of it himself" so as others have suggested, for peace of mind when you sell it I would have a clearance test or air quality test performed by someone so you can show it was remediated correctly and 3rd party test results show that. 

Also the things you did yourself were never performed by any contractor or employee. 

High performance insulation/envelope and drywall HERE WE COME!

Is there usually any up front fees or do they only charge once they perform a service for me? 

Its time to get an attorney on this if nothing else to perform risk management because the deposits are not your money but property of your tenants.

Here is my dilemma.I am a third year university student.

Third - just doing some very cursory research brought me to the infamous north Texas squatter story and the obscure Adverse Possession law.  

Martin It would be a really good itdea to have an experienced Architect perform an accessibility review of your property for compliance with accsssibility standards.