Higher authority and specific number. 

On your letter put on the bottom "CC: Chicago Housing Authority". 

I wonder if the author is truly ignorant or if they actually know better. https://www.forbes.com/sites/marcprosser/2017/07/19/data-proves-reits-are-better-than-buying-real-estate/

(disclaimer: I have no affiliation with author Simon Sinek and am not being compensated for the recommendation of this book)

Usually that entails obtaining a copy of their business license, insurance, and some other operating agreement type stuff.Also, the contractor you select needs to be OK with waiting until full completion and inspection by the lender before any payment is authorized and released. 

Each partner’s or S corporation shareholder’s share of items of income, gain, deduction, or loss of the partnership or S corporation is taken into account in applying the above limitation for the tax year of the partner or S corporation shareholder; and regulatory authority is provided to apply the new provision to any other passthrough entity to the extent necessary, as well as to require any additional reporting as IRS determines is appropriate to carry out the purposes of the provision.

Section 8 Housing Authority approved me for $2,284.

is includes your name, street address, and telephone number and that of any manager or other person authorized to accept rent, plus information as to whether rent is to be paid personally (and if so, usual days and hours you or that person will be present to accept rent), by mail, or by deposit in a nancial institution.

While the no-reassessment may be attractive on the surface, it cannot be guaranteed as the taxing authority can alter their assessment at any time based upon the "value" of the business.  

Sometimes when they feel they're treated unfairly, they complain about you for the smallest things to the authorities, and in the long run, cost you more.