I think I can get a policy online with the other requirements, but this waiver seems to be more difficult to find.

I won't list them on Airbnb because of Airbnb's arbitrary and guest-forward refund policies.

Then, before buying anything else, make a list of all the learnings you got from this experience, and then list the systems and policies you'll put in place to ensure you never do this again!

We don't tolerate clients that want to micromanage us.

My wife and I rented for nearly 9 years near Prospect Park, helping an absentee landlord build wealth, with zero benefit on our end (from a financial standpoint at least).  

It makes zero sense to not use Quartz/Granite when you can get it that cheaply.

:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

Borrowers ability to pay and afford this home since they had zero down2.

Haven’t done it, but it seems to be kind of be a middle ground between returns and risk tolerance. 

If you set standards and stick with them, you'll catch shenanigans like this.The policy should be that every adult passes your screening, period.