(Broken windows, heater broken, leaking water pipes, electrical problems, holes in walls, rotting porch, among other damages.)The buyer continues to make payments, but if they stop then you have a ton of repairs before you can rent out the house.

Each building has a boiler system and tenants pay electricity.

I also have a husband who used to work property maintenance and has his EPA license, can do handy man work, paint, light electrical, light plumbing, drywall, landscaping etc... 

I watched a video on the SQ4D company that legally built a 3D Printed house (selling for $300k in an average $550k market) just recently in Long Island, NY and they are getting better at tackling the plumbing, electrical, and making it custom made. 

You need licensed contractors and permits for electrical, plumbing and for major things, someone who knows how to put a roof on and address foundation issues.

You need sewer, water, electric, fiber optics, sidewalks, fire hydrants, storm ponds?

learn everything you can about electrical/plumbing/gas/HVAC.

(we're no longer in touch or else I'd introduce you) He'd get all the water, sewer, and electrical lined in, do all of the streets and frontage, then sell the project to a track builder to handle the rest.

If you ever have Electrical Engineering questions, I'd be more than happy to help.When investing in a leveraged property with a ROTH SDIRA, I am subject to UBIT and UDFI.

also if you are going to put yourself out there as a handyman, you had better have an extensive knowledge base,  and know the limitations, I.E. what you can and cant do when it comes to electrical, Plumbing , ect.