With its pristine streets, continental weather and waterfront vistas, St Helier looks every inch the picture-perfect tourist town. Yet, the capital of the Channel Island of Jersey is also an offshore financial hub, with 943 regulated investment funds domiciled there, housing net assets of £314 billion. And wherever there is money, you will find lawyers, and accountants and corporate fixers. Most of the major accountancy firms have operations in the town, but there is also a burgeoning business for boutique advisers, either as an executive or non-executive director, who will sit on the board of a company or fund. One…