As real estate investors (and landlords), we have an obligation to be fair and impartial and respect the individuals and families we interact with.  

For instance, if a property goes empty and you were expecting rents during that time - leave it empty for a couple of months - nothing forces you to keep it rented.And here's the other thing, if you get audited, you are the unlucky 0.3%, and if a red flag is raised during the audit, you will get audited again and again.

Another wrinkle is that I reside faaaar abroad so I am not in a position to be an onsite arbiter of this matter even if certain members of the forum would conclude that I am responsible to solve the problems between my tenant and her neighbors despite the existence of specific City authorities who handle these problems professionally, safely and impartially, for a living.

;-) Jay:I've worked in information security for almost 30years (mostly in the design side, but spent a fair amount of time performing security audits of communications systems and infrastructures) and I think you are over reacting.The OP asked about providing Internet and/or cable service to his tenants, not to the public.In the buildings where we have Internet for our building monitoring and provide "complementary" internet, each unit has its own (layer-2) segregated network.  

He then wanted to talk about his odds of being audited and what numbers he needed to report to fly under the radar.I interrupted him part way through a rant against taxation, government, etc and said "I don't think I'm the right CPA for you."  

A Property Manager with hundreds of applicants every year will have to be more open about their processes to avoid a Fair Housing accusation or to survive an audit.

I'm going to set up a system of recurring reminders on something like a semiannual basis to audit all of my negotiable expenses.

Remember, these applicants can file complaints and so audits will happen.

@Aaron Grant from what I have heard, to much paperwork, and fear that it will trigger an audit, which I guess used to be kinda true many years ago but from what I have heard, not anymore.

Now, after you've refused to rent to someone, and they wind up homeless, they land on the city's doorstep, and the city listens to their sob story, decides you are wrong, and suddenly you have tax audits, building inspectors, and enough alphabet soup to DROWN you in your life.