But when someone immediately responds to something I've wrote, without questions or verifications, and simply says "you're wrong"; Yeah, that kinda pisses me off.

Age?

., Inspect Mechanical items, Water Heater Age, Roof, and Appliances. 

In New York City, it’s the law to have window guards for an apartment if a child below the age of 10 is living there.Is taking out the window guard and screwing in the air conditioner in replacement of the window guards an option?

In this day and age it is almost impossible to be invisible.

The rationale is that Airbnb provides host protections and guest verifications, thus reducing your risk and need to do your own background checks.

If they are VERY professional, they will have their processes in writing as verification that policies are enforced equally and fairly by their entire staff.6.

The way I did this, and I started at about your age and with a wife and 3 kids, is I learned quickly that I need to buy out of state.

Once you have some prospective residents it's important to do your due diligence with screening using background checks,income verification, and credit reports.

Thanks Michael, it's good to get that additional verification.