My question is: what about items like exterior wood rot, exterior repaint, maybe some foundation shoring up, windows, etc.?

After talking to some friends they asked why I wouldn't just buy a SFH and rent out the rooms and/or basement while I lived there since the multi market is dry in Maryland and I could build my portfolio with single family homes instead.

Maybe hire a general contractor for flips, a person assistant to pick up dinner/dry cleaning/etc., a cleaner once-a-week, etc.

Since Feb. 2017 I have attended multiple seminars and they are all "MLM's" or trying to up sell you an education and leave you out to dry.

Only has two states, dry and wet and all it does is alert you when that state changes.In Wall Outlet – GE Z Wave Duplex Outlet.

I haven't been able to resolve our issues here either, but we on occasion once a tenant leaves is to pull off the register, scrape the texture, spray a 10-1 ratio bleach and water on the affected area, let dry and get a can of spray texture and then touch-up paint. 

I agree with @Dan Perrott , it's not cut and dry.

Especially if the rental market dries up in that town.

The new hard wood floors had to be replaced, walls painted, house air dried, among other things.

A simple "I would be happy to meet you over here in 2 days once the floor is totally dry" probably would have avoided all of this