I aim to keep my overall cost to them well below market rents in order to provide them the best possible value and to keep their spouses on the other end happy.

Besides cash, are here any other precautionary measures you'd take to be in the best position possible? 

I spent a lot of frustrating nights, not using the right materials, measuring wrong.

From what I see and read, I don't think there is a loan that would allow me to do this, so I am thinking I have to get creative, Unless I am unaware of an option out there... but any advice is appreciated :)I am aiming to buy a house in the Atlanta area that I can improve/fix up to increase the value, but instead of selling it quickly as a flip, I would like to live in it!

oh.....I'm just going to let the bank have it" They have made up their minds, and have a small measure of peace.

Something that we can all shoot for as we aim to get to financial freedom.  

Take photo and measurement  of the property and indicate that this predate your purchase, read section E and try to either make a case that you did not violate with data(photo). 

Tape measure  length times width 

I doubt the numbers work for say, the "BRRRR" strategy (which aims to get you all your own outlay back again upon renting out and refinancing - while still showing positive cash flow, rather than selling).Are you an experienced flipper?

While at first glance the market may seem expensive here in the DC area....when measured against incomes, it really isnt.