Contracts! You would contract with a particular for-profit legislative system the same way you contract with an insurance company and a police company and a wa

Contracts! You would contract with a particular for-profit legislative system the same way you contract with an insurance company and a police company and a war-defense company. The insurance company would have contracts with investigative companies and retributive force companies. When you get into a dispute with your neighbor over whether they are allowed to build a wall that might cross on to your property, you contact your court company and your insurance company. The court company sends someone to talk to your neighbor and get details of their jurisprudence subscription. If they subscribe to the same courts, excellent! They have jurisdiction and can decide whether this is a minor violation of the contract (see rules on respecting property lines) or a major violation. Violations can be punished by corrective action or fines equivalent to the costs of such. If the neighbor uses a different court system, perhaps they have a treaty-contract with your court system. In that case the treaty-contract will supply the rules. Oh, but maybe there isn't a treaty-contract. The court companies might take this opportunity to negotiate one. Or, they might notify their insurance companies that they have a conflict. Maybe their insurance companies have a mutual non-aggression contract, in which case they might force the court companies to negotiate a treaty-contract or lose insurance coverage. See? Utopia!