1)   Buy cheap and replace all the major mechanicals during reno.2)  Get a survey-  Nothing like finishing a remodel to find out the master is on the neighbors lot.3)  Have a clean and straightforward lease that address's problems before they arise..  

When issues arise, they need to know you will address them swiftly, firmly and fairly.You are bound to operate off the terms of the lease that was in place when you purchased the property, which puts you at a disadvantage.

I've never heard of a problem arising with a house because of not running air conditioning. 

A presumption of abandonment shall arise 10 or more days after the landlord has posted conspicuously a notice of suspected abandonment both inside and outside the premises and has received no response from the tenant."

This should be fairly easy to do by contacting the court and contacting the landlord whose name appears on the eviction record.I agree that you always should try to get corroboration on eviction records that arise.

Your biggest killers to your bottom line will be keeping rents in place and increases over the years if you do not own the space, labor cost policies with people asking for 15 an hour, and having FFC's ( fixed food contracts where you have set food costs even in a rising market ).

If the person who has access money also documents the money then issues will arise.  

The issue primarily arises I think from the fact that there is no true standard for service animals as regulated by a government agency.

If a problem arises, work as a team to remedy it.It's good the tenant informed you of the problem as they perceive it.

.- Investments will be buy-and-hold, so ideally I would like companies with which I can build relationships and receive future counsel for landlord-tenant issues that may arise so I don't have to constantly be attorney shopping.- Ethics and integrety