@Heath Ryans That is actually what I was looking for, thanks a bunch.

I actually wasn't accurate enough in my post above - it'll cashflow for us within the next year or two, it just needed lots of repairs over the last few years (bought as a fixer-upper, built in late 1800's).   

@Todd Dexheimer   It's actually supposed to be 'dear husband'....lol.  

The analysis is actually very much the same (ROI, payback, etc) as if you're looking at a deal - but, you might be deciding on counters etc.  

I’m actually trying to purchase as many units over the next 5 years as possible!

But I just want to make sure what I think I know is actually correct.

Is it fairly rare yeah will it creep up in value over the years yeah but the reality is the real estate market offers a much more lucrative opportunity.

Seven days after the house was under contract I had water come into the home and I have not yet fixed the issue; however, they never moved in and actually started living in the property. 

I've actually seen worse...on the ceiling. 

Actually using regression statistical model (90 day weighted avg) based on home price since 2011 to date analyze sf, lot size, amenities(fire pit, modern bath, outdoor fireplace, pool, hot tub, solar panels) to determine the contribution.