They hit 80-90%+ accuracy, which means way fewer wrong numbers and dead ends.

Nothing wrong with you hating them.

Whoop the link I put above looks wrong.

But I believe is morally wrong and against capitalism to put this kind of restriction just my personal opinion.

There are lots of things that can go wrong for which you should have reserves.

This is personal opinion and could be wrong so use at your own risk.1) Yes, it is possible to find deals where all of the cash flow for 5 years (and often more) is offset by depreciation. 

The other thing to consider is the age and if you add a second floor will the entire structure need to be brought up to code for hurricane and wind.I live in a neighborhood where the homes are older (not in florida) and the foundations are hollow core CMU and adding a second floor would not be feasible due to soil bearing.

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

Wires chewed, tenant gets electrocuted, or a fire then it's now a wrongful death, and whomever being sued.

The vast majority of lawsuits against landlords involve wrongful eviction, security deposit disputes, and Fair Housing Violations.