With appreciation and loan payoffs the past 6 years, we would have about $250k profit after closing costs at the estimated home value (doing quick math).

Quick math says you're collecting roughly $420/mo in cleaning fees.

Doing the math in aggregate, the solar fees minus the credits are roughly equal to my electricity bill before the credits are applied, so it is basically a wash.There are additional downsides:I cannot cash out the National Grid billing credits directly.

As for the tax portion I explained those numbers could be off slightly but overall I feel this still beats the market.Using the same math my other properties have had lifetime returns of 89.97%, 22.69%, 46.90%, and 34.69%. 

Since you said you don’t really need the cashflow because you are sitting on huge reserves do the math based on income instead of cashflow.

@Chris Magistrado, I am going to echo Rick: without checking the math, it seems close to accurate, in the theoretical sense that A*B=C.Take what I have to say with a grain of salt because I am not a "full-time" flipper. 

Let's do a math: one student x $40,000, then 1000 students x $40,000.......

You do the math lol.

You're like  Ok Ken, let's try mathing it out. 

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