It's a system that's as moral as the people within it - no more, no less. Any deviation would cost the decision maker economically.
Bullcrap. There are a number of ways to argue against this claim, highest among them: (1) you can't know all the statutory laws - there are too many; (2) the written law can be interpreted 20 different ways by 10 different judges; (3) there are still many situations where legal experts agree that "the law" is unclear about the outcome of a case - either due to novel facts applied to old statutes or to new statutes being applied to a set of facts that used to be treated differently; (4) Statutes change every day in the regulatory, civil and criminal codes - not to mention the procedural rules of the courts; (5) there are umbrella charges that can be applied to anyone at any time - commonly called "contempt of cop"; and (6) even in statist jurisprudence it is generally accepted that "the law" is not something that anyone can know all of at any time - it is merely "discovered" by trial and error over time.
Unsuspecting victims? You would consent to rules of behavior upon your own actions, and know explicitly what you can and can not do to others and keep your representation by your selected DRO. The statist system better fits your critique here: at any time an agency with which you've never contracted can change their rules and come after you for breaking them.
So because something was written down by one agency at some point makes the decision right? First, why wouldn't there be "publicly inspected records" in a voluntary society? It seems that a cooperative agency would find benefit in providing this service, and could survive economically by charging Title insurers a premium for certified deeds at the time of sale of a property. Second, your prior argument against distributed/voluntary law was that it was "immoral" - this blind following of state records of ownership is demonstrably immoral. There are cases in US courts that take these records back to their first creation, and have held that conquest of the land by the British crown was a superior claim to a voluntary deed transfer from the native owner to a willing buyer.
The whole statist system is nothing but violence all the way down.