The seller of the new home simply waits for the other property to be sold to collect the amounts due them.These are conventional approaches to bridging funds from one property to another, not a screwy thing to do.

Syndicator put the deal together end-to-end (finds deal, negotiates, closes, sets up LLC, works with lawyers/banks/accountants/management companies, etc)I have a good relationship with the sponsor and am simply looking for an opinion as this doesn't seem to fit your traditional syndicated deal structure.Thanks!!

Is cash buying simply a means of making the transaction happen as quickly as possible or is it completely necessary?

They could simply put the money in as a loan to the company with a market interest rate that you paid back to them.

I did some more digging and research on the internet, and I came upon a comment on a youtube video that simply said...

It simply amazes me.  

Find out a way to make it win win.  

It would be a win/win and my MIL will be paying the mortgage at the rate she currently is at her current house with many more perks!  

I want to make a deal where its a win win for both of us.

Or does one simply learn as they go?