Majority of Americans do not have the STEM education, skills, prime age to get high paying jobs but alone with the stellar savings for downpayment. 

@Art Warshaw Great to hear.

That's "prior art".

It seems reasonable to me for someone to start under the wings of an investor and trade time for developing some skills to build on. 

Or, perhaps you could start a consulting company with whatever skills you have expertise in.

I know some of the newer ones are bi-level or super-expensive condo style, but mine was more of an artist loft. the people upstairs had a nice fancy place with exposed brick inside and a fireplace and they paid more for it. mine was simple, white, clean, and very artist-oriented with separate rooms and windows in between the rooms like little art showrooms.

A fire extinguisher is under 20 bucks, I might bring that as an offering to the table, but I wouldn't let them paint - painting cabinets requires some skill and patience - what if they do it very badly you may end up spending a lot of time reversing the job, or buying new hardware....worst case new cabinets. or they've spilled paint on the floors too...

You shouldn't be using Cost/Sqft as an evaluation tool in the first place.MLS data is KNOWN to be inaccurate; the selling agent enters it all as 'best he/she can from the information available".Sincerely hope you have better evaluation skills than that shown here.

And once you master these skills (like I did), guess what.

I wish to be realistic, and show with a limited amount of skill (no I have never re plumbed an entire house before nor have I been shown how to), limited resources (almost no money), your time, and that hard work you can change your life.