I don't think that I would want to live next door to my business partner if things got bad.  

No matter what you do or try to do, you will never be able to improve your neighbor's property.  

they didn't even put hardware on the doors. 

I don't know your background, but I'm going to assume you haven't managed this many doors before, and you probably have a day job.  

It said that the single best ROI would come from a fresh coat of paint on the front door.

When you have a copy of both contracts (and email printouts of the emails they sent) go knock on the home owner's door at a reasonable hour.

During those three years we purchased the house next door via seller finance, and also another foreclosure. 

I haven't really delved into HELOCs yet, which could open some doors.  

I'm a new investor in Atlanta -- currently, I own seven doors in the metro region.

But now, I am releasing a tool that is so powerful, when they walk in the door and are assigned to an advocate like myself, I write them an award letter stating I will pay rent for 1 year, then they get onto a platform that draws them a road map of every property that will except them and they get the keys the same day.