For what it's worth, I don't think you should expect your GC to put skin in the game. 

It has come to my realization as I put up all of the money I have worked so hard for, that he has no skin in the game.

Again, other might feel differently here.b) Skin in the game: as a conservative investor, I understand that the dirty secret of industries that the waterfall compensation is in the line with me and incentivizes sponsors to take more risk.

Three months of being under contract and having the deal fall apart due to you not producing any qualified buyers will get under any seller's skin. 

The tenant is a deadbeat lying useless waste of skin.

I have mine on the lowest sensitivity, still miss things.

There’s numbers on a piece of paper that put seller financing in a great light.And then there’s the reality of seller financing being a bet on the buyer managing and maintaining a property well for years or decades while you still have skin in the game.And a bet that the value doesn’t decline by more than the balance of the debt.And a bet that the higher “price” received because of seller financing doesn’t come with opportunity cost in the form of being able to spend or invest the liquidity day 1.And the fact that buyers with seller financing always want better terms than a bank would give them, which is real economics that sellers are far less equipped than banks to estimate risk/reward on.Seller financing is relatively rare.

There are some things that become more sensitive though to look out for. 

The seller has an opinion and so do appraisers, but no other skin in the game.

Some people are very sensitive to smoke/second hand smoke and will select a building that specifically is non-smoking.