NONE of these walls are load bearing.

My oldest and her husband had a rental they were in burn down (total loss) due to a short in a wall heater.

The distinction I usually make is that a structure that has zero shared walls is detached, a structure that has one shared wall is SFR Attached, and a structure with two or more shared walls is considered a condo.

same thing with the walls and even ceiling I would guess.I did it in my duplex 3 years back and it has been fine so far

We just bought a place that had some water on the basement floor from a leaky tap and another had some slight dampness on the concrete wall but dryloc fixed it.

Unfortunately, you just have to run a lot of numbers and dig deeper on the ones that aren't dogs on the surface.

It's just that first wall that you have to climb and get over. 

Upon the tenant leaving, they discovered the slow leak he had "Fixed" was rerouted between the wall and the cabinet and it rotted all the subfloor in the kitchen, about $6,000 to fix. 

I'd really like to see newbies succeed, but I know you won't as long as you continue to have the fast buck attitude, as long as you keep following schemes and trying to implement systems from some seminar or just try to specialize in putting square pegs in round holes as you might on an assembly line.Success is not doing some deal or doing a deal a month until you hit some wall and get lost then get out of the business, when I say success I mean build a business that can last for your working career or lifetime.

Should you rehab the basement for flooring and wall to nice showing for rental units or they are not really important that much for renterMany tks