The electric is now updated and metered for 4 units, plumbing redone in PEX and is livable.

I'm a structural, HVAC, Electrical, Plumbing, etc. engineer, the CAD/CAM part is just one of my tools your right Emilio not of utmost importance :)Jon, I revised my approach yesterday after learning about set-backs to finding a lot first since it drives sq ft...My local planning/zoning dept has it online, so yes a good starting point is the lot/zoning/set backs/sq ft way I see it.

State that they must make available heating in your bedroom and it cannot be in the form of electric or temporary/ portable heater due to code violations.

After inspections, a lot of issues came up that need fixing: electrical, termites, plumbing, some foundation work.

I think if the landlord is paying electric or gas, that the 400 number is too low - and BTW which is that electric or gas, because the next line has 4K for gas.

Then go to as many REO properties as you can and practice your skill set.Here is some more info that should help you: Break up the home into sections - Kitchen, baths, flooring, paint, stucco, landscaping, plumbing (including fixtures), electrical (including fixtures), HVAC, interior doors, door casings/baseboards, windows/sliders/front door, roof, foundation, misc., and garage.Once you know what the common costs are for each area for a specific size home, you can see how easy it will become to walk in and walk out 15 minutes later with a rehab figure in your head.

I want to flip houses with an emphasis on energy efficiency and green, healthy improvements.

So the switch to electric heating and cooling would significantly lower the building's utility expenses.

Because of the layout of the existing walls, and the routing of existing plumbing, ducts & electric, I knew it would be a fairly simple and inexpensive operation (again--I only knew this because I visited the property)...after the work was done, it transformed the place from a negative cashflow property (that mostly only appealed to college kids) into a cashflow positive property that appeals to couples, couples with a child, well-off single people, and pairs of housemates.The "physical assessment" and the ability to see the potential of a property is a skill that can't be easily learned via books, youtube videos, etc.

Your energies are too dispersed.