The only way this can come to a meaningful conclusion is for two things to happen.

First, steps should be taken now to lock in who is going to have to pay if found guilty. No passing the buck. No transfer of assets. No "bankruptcies".

Second, anyone found guilty must be held financially liable for any necessary remediation. Then anyone left standing must forfeit any land they own in the greenbelt. Ideally, not just the specifically contested properties, but everything.