Given the details you provided, I personally might not want to settle this in mediation with this tenant however as I'd probably just want a judge to cut through the BS and tell them to pay up and get out at this point.

Here's a detailed guide on how to screen applicants: Application Screening Guide

Verifying last 2 years of rental history and income extremely important to find the “best of the worst”.Make sure you understand the Class of properties you are looking at and the corresponding results to expect.The City of Detroit has 183 Neighborhoods we’ve analyzed.PM us if you’d like to discuss this logical approach in greater detail!

Real Estate, Self Help/Health, Starting my own Direct to Seller Business, Roth IRA, Crypto, and my family! 

When you are getting into raising big dollars from sophisticated investors they are going to want to see a track record and a well thought out and detailed business plan.

You are very detailed about your complaints, but never mention basic important details such as what kind of rental agreement was given to these tenants?

Not exactly sure about the legal details, but initial overview of the system seems to suggest this kills quite a few birds with one stone.  

As the portfolio grows, we’ll be able to implement gradual, strategic adjustments to rental rates, particularly for tenants in need, without undermining the overall financial health of the endowment.Phased Returns for Investors:Investors will be repaid through a combination of rental income and profits from other high-yield activities, such as property flips, during the early phases of the project.

Here's a bit more in detail about how rates are calculated for DSCR loans:1.

That project taught him that buyers in these well-established neighborhoods pay close attention to the details..things like making sure the ceiling lines are clean, storage is intuitive, and every inch feels purposeful rather than tacked on.For your project, thinking about the functionality of the added space is key.