Complexity is the thing most wealth managers seek to avoid; but not Wiederin. He prefers multiple jurisdictions and generations: ‘Cross-border is complicated, and complicated is good for us.’ It is the intellectual challenge as much as anything, one suspects, in sorting out which country gets (or doesn’t get) which tax, which relative gets which asset. In these fields — asset protection, succession planning, tax planning — he says his Liechtenstein-based wealth advisory firm excels. Kaiser Partner was already the oldest and biggest trust company in Liechtenstein, but has since accreted services, including accountancy, legal, family office functions and private banking. Wiederin, who founded and ran the Boston Consulting Group’s Swiss business for 24 years, is the vice chairman — a 15 per cent stakeholder in the business which dates back to 1931; his partner is the titular Kaiser. His role at Kaiser Partner is looking after ‘the biggest, most attractive, most challenging clients’, using the family business skills he learnt at BCG. As well as Kaiser Partner having all of its competencies under one roof, Wiederin recommends Liechtenstein as a jurisdiction because of its stable, long-established financial rule, as well as for tax-compliant diversification. The global pursuit of low-tax jurisdictions does put Liechtenstein at risk, he admits, but says the princely family reacted quickly to pressure. One measure was introducing the Liechtenstein Disclosure Facility, which allowed UK citizens to bring covert money to the surface through the country’s banks — a smart move from both PR and AuM perspectives.