The most reasonable value on his WA condo would be based on comps (actual comparable local sales) and not on estimates, especially estimates as shoddy as those by Zillow.
His filings claim a value of $379,000.
His filings subtract a selling cost of 9% = $34,110, for a total value of $344,890.
He owes $227,448 on the mortgage.
He is trying to get his equity within $125,000, so he wants the total value to be $352,488 or less. Having it valued this way creates a homestead exemption that prevents creditors from forcing the liquidation of his condo.
The most relevant comp is probably the nearly identical
unit in his community that sold in September for $419,000.
Excluding the selling cost of 9%, creditors would have $66,512 to pursue from a sale.
Including the selling cost of 9%, creditors would have $28,802 to pursue from a sale.
I am not sure exactly how selling costs factor in the bankruptcy. Plus there could have been costs covered by the buyer in this comp.
There can also be negotiations for a payment of the difference to prevent a forced sale.