We re-piped the plumbing with Pex, installed new toilets, new showers, new hoses & fixtures.

It has solar power, a compost toilet, and other things of that nature to be self-sustaining.

If millenial homeowners can't even change their home's air filters, or snake a toilet, or change the oil in their car, that's guaranteed future business for HVAC companies, plumbers, mechanics, and those places all need a place to conduct business in.The commercial mortgage pricing software I use has somewhere around 50 different asset classes in it.

Take the toilet out without damaging it, put a sanitary cover over waste hole, put toilet on shower floor.

I get the feeling you don't enjoy being a landlord, so I agree that you should consider selling and investing in something that doesn't include tenants and toilets.

What paperwork should I keep a paper trail of to make things like taxes and other situations better/easier for myself?

Such as unplugging smoke detectors, flushing things down toilet not meant for the toilet, etc...

Handyman after guest vacates replaces toilet, breaks old toilet to find vape in toilet.  

Your cash flow is positive on paper, but how will that look in reality?

A couple issues with Credit/income on paper.