However, there are some additional steps involved with Section 8, like coordinating with the local housing authority.

"Right to Rely on Instructions; Exceptions.Qualified Intermediary may act in reliance upon any instruction, instrument or signature it reasonably believes to be genuine from Exchanger, its officers, attorneys and other representatives, and Qualified Intermediary may assume that the person giving the instruction, instrument or signature is authorized to do so.

I didn't see a Biggerpockets book on commercial properties (maybe there is one that I didn't find) and I don't know which book to buy or which author to trust on Amazon.

So, I’d dig into the numbers before making a call.Local zoning and code regulations: Converting a multi-family property to a single-family unit might require permits or specific approvals, so check with your local building authority to avoid surprises.

My clients and I have used Cost Segregation Authority with excellent results. 

I add people to my credit cards as authorized users for a fee.

So before you get ready to attempt to rip your Landlord a new one, first go take it up with the local taxing authority, then go have it out with the insurance industry, then gripe to the neighborhood HOA (if applicable), then maybe settle your disputes with Home Depot/Lowes and any and all trade contractors.

You may want to do some independent research on the respective Housing Authority website as well. 

You need to reach out to the housing authority, not the tenant.

Many taxing authorities are wise to this, and so require some form of disclosure on the sale price of the holding entity.