For greater Atlanta and all Georgia really for multifamily investing at not the mega-apartment level, I recommend checking out Nate Gottesman:https://mrgocapitalgroup.com/

For partnerships, I always suggest an operating agreement (AO), and that should line out the things that each person is doing and the profits shared and more!

Based on the info you have provided, you appear tp be making this decision on an emotional level.  I

Should I be  very detailed or should I keep it high-level? I

You have no idea what went on during the remodel, there are so many ways to cut corners and so many thing s that a do-it-yourselfer does not even know.It used to be (in my AO) that non-permitted work was only valued at 50% of permitted work.

It's just finding those deals and making sure the numbers work for you and your comfort level. I

I don't know what the water level is at your property for the well.

Bad workmanship on the surface level is going to freak people out, they are going to wonder what shoddy work was done that they cannot see. 

The hyperlocality (that's word now) means that even if things go south, some markets will rise or stay level.  I

Currently I am trying to determine what calculator I should use to figure out if a deal is worth it.Best,AO