Case Study: Building a Family Office from Scratch

The journey of a Mexican family establishing their first single-family office in Europe — from jurisdiction selection to investment deployment.

Background: Why Build a Family Office?

When a multi-generational Mexican family with a net worth exceeding $50 million decided it was time to professionalize their wealth management, they faced a fundamental question: continue relying on a patchwork of private bankers, local advisors, and family-managed accounts — or build a dedicated structure to manage everything under one roof.

The decision was driven by three catalysts. First, the family patriarch was approaching retirement and wanted clarity on succession. Second, the family had significant real estate and business holdings in Mexico that required active management alongside their financial assets. Third, two of the three adult children had relocated to Europe, making a European base operationally logical.

This case study traces the 18-month journey from initial concept to a fully operational single-family office based in Europe.

Phase 1: Jurisdiction Selection (Months 1-3)

The first and most consequential decision was where to establish the family office. The family evaluated five European jurisdictions across multiple criteria: regulatory environment, tax treatment, banking infrastructure, quality of life, and ease of doing business.

The shortlist:

• Switzerland — gold standard reputation, but high operating costs and increasingly complex tax reporting for non-EU structures
• Luxembourg — excellent fund infrastructure, but limited appeal as a family residence
• Spain (Barcelona) — family connection, strong lifestyle appeal, and the Beckham Law for new residents
• Portugal (Lisbon) — NHR regime was attractive, though the program was under reform
• Estonia (Tallinn) — innovative digital infrastructure and favorable corporate tax on retained earnings

After extensive analysis, the family chose a dual structure: corporate and investment holding in Luxembourg, with the family office operations and daily management based in Barcelona. This combined Luxembourg's superior investment fund infrastructure with Spain's quality of life and the family's existing connections.

Phase 2: Governance Framework (Months 3-6)

With jurisdiction decided, the next challenge was governance — arguably the most important long-term decision for any family office.

The family worked with Serra Wealth and a specialized family governance consultant to create:

A Family Constitution — a formal document outlining the family's values, investment philosophy, decision-making processes, and succession rules. Key provisions included:

• Investment decisions above €500,000 require approval from at least two family members and the CIO
• No single investment can represent more than 15% of total portfolio value
• Family members can request distributions up to 3% of their individual allocation annually without committee approval
• Succession of the family council chair rotates among the three children on a 5-year cycle

An Investment Committee — composed of two family members, the family office CIO, and one independent external advisor. The committee meets quarterly to review performance, approve new investments, and assess risk.

Conflict of Interest Policies — clear rules on family members' personal investments, related-party transactions, and use of family office resources for personal business.

Phase 3: Team Building (Months 4-8)

Staffing a family office requires finding professionals who combine institutional-level expertise with the discretion and flexibility that family dynamics demand.

The core team consisted of:

• Chief Investment Officer — recruited from a Swiss private bank, responsible for portfolio strategy and manager selection
• Operations & Compliance Manager — handles reporting, regulatory filings across jurisdictions, and cash management
• Family Office Coordinator — manages the family's personal logistics, property management, and serves as the liaison between family members and the investment team
• External providers — tax advisors in Mexico and Spain, legal counsel in Luxembourg, and an external auditor

Total annual operating cost for this lean structure: approximately €450,000-550,000, representing roughly 1.0-1.1% of assets under management. This compares favorably to the 1.5-2.0% the family was previously paying in aggregate fees across multiple bank relationships.

Phase 4: Investment Strategy and Deployment (Months 6-18)

With governance and team in place, the CIO designed the family's strategic asset allocation:

• Global Public Equities (25%) — through a combination of low-cost ETFs for core exposure and active managers for emerging markets and small-cap allocation
• Fixed Income (15%) — predominantly investment-grade corporate bonds and select sovereign bonds, with duration actively managed
• Private Equity (20%) — commitments to 3-4 top-quartile PE funds plus 2 co-investment vehicles focused on technology and healthcare
• Real Estate (20%) — the family's existing Mexican properties plus new European acquisitions in Barcelona and Lisbon
• Alternatives (10%) — a diversified hedge fund allocation plus a small allocation to digital assets through a regulated European vehicle
• Cash and Short-Term (10%) — maintaining liquidity for distributions, PE capital calls, and opportunistic investments

Capital deployment was staged over 12 months to avoid market-timing risk, with private equity commitments structured across 3-4 vintage years.

Results and Lessons Learned

After the first full year of operation, the family office achieved several key objectives:

• Consolidated reporting across all assets, jurisdictions, and currencies for the first time
• Reduced total investment costs from ~1.8% to ~1.1% of AUM
• Established clear succession and governance protocols that all three children endorsed
• Built a diversified global portfolio aligned with the family's multi-generational time horizon

Key lessons:

1. Governance before investments. The family initially wanted to jump straight to portfolio construction. Spending three months on governance first prevented disagreements that would have been far more costly to resolve later.
2. Start lean. A team of 3 internal professionals plus external providers is sufficient for a $50M family office. Over-hiring creates overhead that erodes the cost advantage over private banking.
3. Jurisdiction flexibility. Using a dual-jurisdiction approach (Luxembourg + Spain) provided the best of both worlds, but required careful coordination of tax reporting.
4. Cultural fit matters. The CIO's experience with Latin American families was as important as their investment credentials. Understanding the family's cultural context made governance discussions significantly more productive.

This case study is based on a real Serra Wealth engagement. Details have been modified to protect client confidentiality. This article is for informational purposes only and does not constitute financial advice.