Any development work they've done on the property also becomes your property.If the property becomes yours, you could try to sell it back to them quickly and below market for a nice profit.

I have about 100k in assets both personal and business I could sell, but part of me thinks that’s extreme and I’ll sell “myself” along the way with all my stuff.  

They find properties and approach Sellers and secure a price, then they seek out an end Buyer (you) and sell it to you at a higher price. 

I just heard a strategy of selling points instead of buying points.

My understanding is that you can sell assets and defer capital gaines taxes in an opportunity zone until the property is sold.

Some have done owner financing with an agreement to pay all interest and equity splits when the home sells others have done it where they do a quitclaim adding their name onto title with the seller so once rehab is done the seller can't try and cut you out of the deal. 

They currently are selling 3/2 homes for about $150k and rent them for about $1,250. 

There are a bunch of reasons people sell a property.

Do they keep the loans or sell them off? 

There are others there selling.