You could use an LLC, Trust, personal name, etc. 

There are some things that are extremely useful.

. - Communicate openly and regularly to build trust.

Verifying last 2 years of rental history and income extremely important to find the “best of the worst”.Make sure you understand the Class of properties you are looking at and the corresponding results to expect.The City of Detroit has 183 Neighborhoods we’ve analyzed.DM us if you’d like to discuss this logical approach in greater detail!

Construction crews leave their tools and materials on job sites with doors unlocked and theft is extremely rare.Location, location, location.

Ill message you with his info, Trusted guy who's overseeing properties for me and two of my friends. 

Any trusted registered agent or advice will be highly appreciated. 

I would strongly advise against using an app that the tenant picked, especially considering they are only willing to make partial payments.I use a trusted property management tool to collect rent and I never allow partial payments.

At that time we could renovate the ground floor apartment and potentially turn it into (2) apartments for a total of (5).My questions come down to how do we deal with the existing 40k mortgage, whether we can make it work so her parents aren't paying much in rent, if anything at all, and whether or not we set up any legal entity, like a trust to help the legal situation of paying off her sister down the road. 

They have trusted contractors.