How silly, get thevproof upfront and ensure the buyer can perform financially first.

This is the proper procedure to follow and is designed to protect the landlord in the event that rent does not end up being paid.

Many times people will use the filters on MLS to ensure they find pet friendly rentals and the person who listed the property did not check the proper box but listed no pets in the description causing confusion. 

Like maybe I could hire a contractor to go and fence off the area properly, but it would have to be a contractor who won't just leave if the guy is there, but who will call the police, wait for them to show up, throw out his stuff, and then finish the job.

The fact they are complaining online might be an indication the property manager dealt with them properly so be sure to ask the manager for their side of the story.I hope this basic guide helps.

It sounds like you either don’t have a buyers agent due to it being an off market purchase or he isn’t providing proper guidance

As an inexperienced investor, my inclination is to go with one of these Turnkey providers to ensure I'm not getting into a terrible deal and to streamline the process of getting it financed, renovated and rented out.

The new fourplex will put us at 5 landlord policies, and many insurance companies are telling me they will not ensure over 4.  

Downtown proper is also a great place to look.  

Comps for predominantly rental areas are driven by the income it generates & market sales reflect the proper usage of the property, vacant or occupied.