How I have structured these in the past is if he is coming with all of the capital and you are handling everything else than a 50/50 split is fair.

I have seen this behavior in past and while I can't bet my head that people will act in similar ways as in past I believe there is very high probability that they will. 

I have worked in the Overage business in the past.  I

I am not hard to find if someone wants to work with me.As someone who has run an on-market real estate team with as many as fifty agents in the past, I can tell you that the problem is that real estate agents are lazy and unfocused and want the low-hanging fruit with limited work.

In the past I have paid 15% with a different company.

I've treated some patients in adult foster homes in the past - I wonder if connecting to the operations managers of those facilities would be beneficial? 

And, it sounds like you gave them a chance in the past. I

I am have owned businesses and real estate in the past. I

Because he/she will know the process of buying / selling properties so they can be better suited to ask you the right questions.For example, since I acquired properties in the past, I know the ask clients if they got a home inspection/appraisal / survey prior to closing on the property.

The big hurdle a new person has to get past is we are all the same.