The cash flow you get from that one house might help you but it probably is not enough to pay all your bills and that is fine if y'all both have good jobs that you like and just want to supplement your income.Who the hell am I? 

It's their fault, and the power lies with them to reverse their poor past choices and pick themselves up a bit by their own bootstraps.You're going to tell these new tenants that what's primarily wrong with them is not a legacy of a crime against humanity in the form of three hundred years of black slavery, followed by an unfunded emancipation that turned a huge number of Americans into desperate economic refugees based on the color of their skin, followed by a legacy of organized race hatred, bigotry, pseudoscientific and religious condemnation, and of course overwhelming and widespread intimidation and coercion, followed by a series of failed half-hearted half-measures coupled with an absolute refusal to consider slave reparations and the most lopsided minority levels of poverty and incarceration in the developed world.You're going to explain to these black folks that all that is of secondary importance, and what's REALLY important now is that they get better managing their money so they can hand it over to you more efficiently and you won't have to work so hard to get it.

I haven't noticed a ton of variance in the bill when there's been turnover either. 

Also, it's been my experience that a tenant that pays late that much is living paycheck to paycheck and is just one unexpected bill (i.e. car repair, medical bill, etc) away from not paying rent at all. 

Long sessions of paying bills.  

Making matters worse, because of the fans and dehumidifiers running to dry everything up, the power in the house shuts off every time we turn on an appliance or certain lights.

If you live in an expensive area it makes a lot of sense to buy somewhere where you have more purchasing power and less risk. 

You have the deals and are going to be doing all the work, so you hold the power.

Could, if it works the way we think it's going to work, be a hell of a powerful thing...

We are huge fans of solar and put it on our primary residence, the numbers make sense for our purpose but I would have a hard time justifying putting it on a rental unless it was a MFH where I, the landlord, payed the electric bill.