Jack of Harts

Mars has the largest population of any of Earth’s colonies, but is absolutely not united under a single flag. Every major and most minor nations have a colony on Mars, and that leads to more legal shenanigans than you shake a whole pack of lawyers at. Louis Mattioli excelled in that environment. He did get one really shiny side effect from the Peloran Treatments, and that was an eidetic memory. So he could walk into any courtroom on Mars and argue based on the local laws, including any precedents set by other courts the local court may choose to recognize depending on the current nature of international relations on Mars. He was by far one of the best lawyers on Mars, and he had high-level contacts in every single nation that would answer his call at any time of the day or night. I say this to make certain you understand what he walked away from when he volunteered to fight the Shang.