check out my post about it here:https://www.biggerpockets.com/forums/664/topics/672346-cook-county-tax-exemption-treatment-on-flipI was able to get the ball moving by talking directly to the county about my issue.https://www.cookcountytreasurer.com/contactusbyphone.aspx

Did I insult them with a low ball offer?

(some examples with numbers would greatly help)In GENERAL:- I recently saw that the exercise of the option to purchase should be done with a closing attorney. if I do a sandwich LO, what docs do I send the attorney?

@Mike Ball one thing to consider is you should have a thorough inspection done before you purchase so you can account for any major repairs prior to closing and anticipate future needs.On smaller properties $300-$500 is not much but over 100 units or more  it’s $30k-$50k so your CAPx account can grow pretty quickly but as you point out unanticipated major repairs can wipe out cashflow pretty fast so you need to do thorough due diligence in advance of closing.

If they don't exercise it until the end of the period, I get an additional $25,000 at the sale for profit for my portion.  

@Mike Ball  Hello Mike.  10% is the norm.  

I'm currently working with the law firm who filed the suit on behalf of the county and have contacted a lawyer to get the ball rolling on an affidavit of heirship.

Exercising the valve is a GOOD THING. 

@Yaicha Bryan My response is not a direct answer to your question, but a curve ball!

Who was the lender and how did they drop the ball?