Lender is not wanting to lend the full amount to the buyer

[Jodie Fae]

I'm a wholesaler and i have a contract for $110,000 with the seller. I assign it for $30,000 now the buyer is coming back to me and saying the lender will only be able to lend at $125,000 cutting my $30,000 deal.  SHould i agree and cut my losses or re structure the deal that he will owe me on the backend of the sale?