California has the Cullen Earthquake Act.

Essentially one affected party comes up with a proposed solution, files paperwork with the court, and then all the rest of the affected parties get together (under court supervision) to make whatever changes are necessary until the solution is fair. If the court agrees that it is a fair solution, it becomes final.

https://law.justia.com/codes/california/code-ccp/part-2/titl...