Yeah it sounds like we don't need a whole bunch of rules but rather a less formal arbitration process. Like, a community council that can settle disputes even if there's not a law being broken if one party is acting unreasonably. Of course, the loser could then elevate to an actual court if they feel their rights were/are violated.

No punishments, no fines, no lawyers, just a mediator to help settle minor disputes whose decisions are somewhat binding. Ideally several individuals that are elected by the community.