I think Cicero has a transfer tax that comes out to about 1% of the sale price + a $50 inspection fee. I assume your in-laws are selling it for about $130,000?
A lot of towns have these taxes, just as the state and all the counties have similar taxes. It's a revenue stream for them. What do you get for this tax? Nothing. But you're probably contributing to some over-sized government pension where the beneficiaries get 100K per year for doing nothing. This is just another example of why we are over-taxed here in Illinois and need to throw all these bums out.