If I were negotiate with the seller receiving that they would write me a $15,000 check after closing for repairs, would the bank have a problem with that? That would be greater than my down payment. 

@Don Ellestad

You would have to have the money escrowed, and bids done with estimates to show where the money is going. It wouldn’t be a check handed to you at closing.

@Jerry Padilla

Thanks for the response.

What if it wasn't specifically for repairs or if it was done "under the table" as they say? 

I am not trying to pull one over on the bank. I an just curious as to the legal implications of such a deal. 

Mortgage fraud.