To put it simply, I’ve been told that I do not have enough skin in the game myself in order to cash out some equity.We bought the seller financed with only a $30,000 down payment.

Anyone financing YOU, only cares what YOUR skin is in this, not what others obligations are other than those obligations add to how much skin you need in it ie down payment. 

Maybe I have thick skin and, as I indicated, I think there is typically no value in calling someone sensitive.  

Pro tip: Even though you can put no money down, you should be offering money down when you offer (even if it is returned at closing) so you have skin in the game.

I think he provides value to the people he teaches, not only that but from my experience I have seen that unless people have some skin in the game (paying money) they don't take the knowledge they learn seriously. 

Quote from @Susan Maneck: You disparage a group based upon there ethnicity or color of there skin.  

First, you need to stop listenng to your girlfriend, who has zero 'skin in the game'.

No skin in the game. 

I have no skin in the game here -- I have not done any transactions with Neu Real Estate Group yet. 

They all want to see some of your own skin in the game.