In order to avoid conflicts among strangers he offers untraditional amenities: monthly house cleaning; monthly restocks of consumables like dish soap, paper towels, TP etc; free utilities and so on.

How did you arrive at your soft cost numbers.

You might want to soften up the soft sell sales pitches errr posts you are making trying to get people to join your program.  

I recently completed one, 800 sf, total price tag almost $300,000 for construction and soft costs, with a third-party general contractor handling the build. 

By the time I add in closing costs, rehab expenses, soft costs (on the out), I'd be losing money.