DaCounselor is correct, if he put no other assets up as collateral he has no obligation to liquidate them to pay the mortgage. Considering how much me makes he will not be able to afford the payments long term, so he should cut his losses and walk.
He should rent a place and allow thant 90k to grow over the next two years, at which point he’ll be able to buy the same house at a price he can afford, and probably with some nice upgrades included.
