Like Bill said, that's asking for trouble.

You want safe buy treasury bills.  

You are totally correct Bill.

@Bill Hampton Thanks so much! 

Quote from @Bill B.: Please hire a Pm.

Such service would on your behalf appeal the property tax assessment (each year, if you wish), and if a reduction occurs, they take a percentage fee from the appeal to bill you.

Thanks Bill -  I have a CPA and did fire off an email to him.

I submitted the affidavit of continuous use executed by seller with each application and for one I was issued a billing statement for the back rental license fees, interest and penalties and for the other I was issued a refusal and had to seek a variance. 

Quote from @Bill B.: I assume you got a copy of all leases and estoppels before purchasing the properties?

Have you looked at the bill?