I haven’t seen it personally but I imagine it’s some kind of “use us to sell or pay a penalty” clause. 

I am currently reviewing the numbers associated with a wraparound mortgage and I need some assistance in determining if they make sense.Can anyone please direct me to the appropriate person who would be able to help me analyze and verify these figures?

Did you actually look at these properties in person? 

It is extremely hard for the average person to afford a standard home, car, and investment property without any debt.

Come by REI Central some time if you want to meet other investors in person.

can you visit them in person? 

It's tough for me to answer on a learning curve question I went to high school for architecture and college for construction management and I've never personally flipped a house, although I know how to budget and schedule it.

I probably will not renew with this person.2.

If that person want profit from each deal going along, you can make agreement with each deal you are doing. 

From personal experience, MLS deals are much less lucrative given their higher price points (typically).With respect to financing, you can talk to any of the hard money lenders on this site for different financing programs they offer (some are tighter with someone who has not yet executed a flip), you can take equity out on existing properties you have, you can use private loan from a friend or relative.