Well, if I'm buying to flip and it's going to cost me 3-5 months of time, effort, holding costs, risk, etc, and I'm only going to make $30k off the final sale then it serves to reason that the wholesaler would make less because they have less skin in the game.

If you want to be real sure, you can have him do the work and then pay another accountant  who is a real estate specialist to review it before filed.The other part is your situation.

As it was my first opportunity to get some skin in the game, I jumped on the deal and we agreed on a 5 year ballon (4% rate, amortized at 15 yrs).

@Sandor LauTo sell your property with creative financing options, hire a Realtor or Creative Finance Specialist in Dallas-Fort Worth.

The buyer must have 20% to 30% "skin in the game." 

Does the sponsor have skin in the game?

and you can find an almost unlimited variation on risk ( from low to high leverage, both floating and fixed rate debt, from no to high skin in the game, etc).

You have no skin in the game! 

There are many ways to skin a cat in syndication.  

Problem is theres slim to none investors that are going to allow you to get into a property with zero skin in the game.