One thing to think about to put your compassionate side at ease is you can also rest assured that any other investor worth their salt that purchased the property would be asking them to leave pronto, so any way you slice it these people will need to move.Also, if you don't get them out prior to closing, there will be this "emotional leverage" on you once you are neighbors. 

@James Wise and this is just one slice of bread in the loaf.

It's very difficult then to slice off "footprints" of roof space for resale and avoid someone else's panels being on your part of the roof.

Thanks in advance I don't think you will ever get carry for providing a tiny slice of expenses.

Don’t matter how many ways you slice it up, or how many beers you kick back with someone, the law still applies, they can step through whatever scheme you setup, just on your intent. 

First this is a though deal anyway you slice it.I broker loans like this, but I do not need to get paid to give advice, if I can help I am happy to do so.

They will pay you your slice however you direct them to.

No matter how you slice it, the math ALL agrees. 

I have money invested in both (investing in notes for slices of their loans). 

If you are an accredited investor you might get farther and faster investing in a smaller slice of larger deals where IRR over time gives you more upside on higher quality assets you might not could buy all on your own.On 1 million dollar deals I will not for example go after difficult properties to find.