Assuming the density only allows for a SFR, then you'd be wasting your time trying to permit all three.

I've considered reaching out to real estate agents to see if they'd teach me in the area but I don't because I fear wasting their time with ridiculous questions One last thing, I keep considering doing foreclosures but again I lack knowledge on that as well so I am willing to take risks, just not blindly.

I’m going for electrician, but I’m obviously not cut out for it and don’t want to waste my money or time since I pay for my own schooling and have little time for real estateIf I were to drop out I would have time to find a mentor, read, attend seminars, attend open houses, analyze more properties etc... my goal is to retire by 30 and I would be going to community college for another 3-6 years at the rate I’m going now.

I wouldn't waste your time trying to source a profitable deal on long island with the current state of the market.

We did some maintenance I terms and painted the basement walls and floors and professionally cleaned the house.

As far as things like checking if plumbing work was updated, electrical, or other things behind the walls...

Generally you want to work from top to bottom (ceiling, walls, floors) and inside out (electrical/plumbing, drywall, paint).

I didn't fix any of the blemishes on the walls.

We offered to call cleaning people to come back and make good on the money she spent and even paint the walls (all of which were left filthy, literally).  

You are on the hook for any and all maintenance repairs if the property needs painted, new flooring, fixing holes in the wall, etc.