Drafting a Family Constitution

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Pertxi Mendizabal

January 18, 2026



I. Introduction: The Family Operating System

A Family Constitution (sometimes called a Family Charter or Protocol) is a formal, written document that outlines a family's shared values, vision, and the "rules of the road" for managing their collective legacy.

In the first generation, governance is usually "The Founder's Word." By the third generation (the "Cousin Consortium"), informal rules fail. Without a Constitution, the "Fortress" becomes a prison of resentment and litigation. The Constitution provides the clarity needed to keep the family together when the founder is no longer at the head of the table.


II. The Core Components of a Constitution

Every family is unique, but a high-performance Constitution generally contains these eight pillars:

1. The Family Mission Statement

This is the "Why." It answers the question: What is the point of us staying together as a financial unit?

  • Example: "To empower every family member to pursue their individual passion while protecting the collective resources that make that pursuit possible."

2. The Family Values

A list of 5–7 non-negotiable principles.

  • Common entries: Stewardship, Education, Entrepreneurship, Integrity, and Confidentiality.

3. Governance Bodies (The Council & The Assembly)

How do we actually meet?

  • The Family Assembly: A broad meeting for all adult family members (and often spouses) focused on education and bonding.

  • The Family Council: A smaller, elected group that acts as the "Board of Directors" for the family, making the tough decisions on distributions or business strategy.

4. Participation and Membership

Who counts as "Family"?

  • Does it include spouses? Adopted children? Step-children?

  • At what age do children gain a vote (the "Voting Threshold")? Usually between 21 and 25.

5. Family Employment Policy

Perhaps the most important "firewall." It prevents the business from becoming a "welfare program" for incompetent relatives.

  • The "Rule of Three": Many families require heirs to have a university degree, three years of experience at a different company, and a promotion at that company before they can apply for a family job.

6. Distribution and Wealth Access

How does a member get money for a house or a startup?

  • Rules for Intrafamily Loans (see that entry) and "Dividend" policies.

7. Conflict Resolution

What happens when we disagree?

  • A commitment to Mediation before anyone is allowed to sue another family member.

8. The "Exit" Clause (The Redemption Policy)

If a family member wants out, how do they sell their shares without destroying the company's liquidity? This prevents "Hostage Shareholders."


III. The Three-Tier Governance Model

To keep the "Fortress" organized, the Constitution must distinguish between three different types of power:

Governance Layer

Purpose

Who is involved?

The Family

Emotional health & unity

All members & Spouses

The Ownership

High-level strategy & capital

Shareholders / Trustees

The Business

Day-to-day operations

Executives & Employees


IV. The Drafting Process: It’s About the Journey

The value of a Constitution is not the paper it’s printed on; it’s the conversations that happen while writing it.

Step 1: Individual Interviews

A neutral facilitator (usually a Family Office advisor) speaks to each member privately. What are they afraid of? What do they want the wealth to do?

Step 2: The Values Retreat

The family gathers away from the office. This is not about spreadsheets; it’s about stories. They discuss the "History of Money" in their family (see Part 1) and identify common themes.

Step 3: Drafting and Ratification

A small "Constitution Committee" writes the first draft. The whole family reviews and "signs" it. While not always a legal contract, the act of signing creates a powerful psychological "Buy-in."


V. Special Clauses for Modern Dynasties

  • The "Prenup" Requirement: Many families make it a constitutional rule that anyone receiving a trust distribution must have a signed Prenuptial Agreement (see that entry). This protects the family from being the "bad guy"—they are just following the "Rule."

  • The Social Media Policy: Rules about what can and cannot be posted online regarding family wealth, assets (like private jets or homes), or internal disputes.

  • The Education Fund: A dedicated "bucket" of money that is always available for any family member's tuition, regardless of other distribution rules.


VI. Why Constitutions Fail

  1. Top-Down Dictation: If the Founder writes it alone and tells the children to "sign here," the children will ignore it the moment the Founder dies.

  2. Too Rigid: If the rules don't evolve, the next generation will feel trapped by "The Dead Hand" of the past.

  3. No Enforcement: If the Constitution says "No family member can work here without a degree," and the favorite nephew is hired anyway, the document becomes a joke.


VII. Checklist: Is Your Family Ready?

  1. Complexity Check: Do you have more than 5 adult members involved in the wealth?

  2. Facilitation: Do you have a neutral third party to lead the meetings? (Internal family drama makes "DIY" constitutions difficult).

  3. Legal Audit: Does your Constitution align with your Trust documents and Operating Agreements? They must speak the same language.


Conclusion

If the Trust is the walls of the Fortress, the Family Constitution is the spirit of the people living inside. It transforms a collection of "Heirs" into a "Team."


  • See: Family Councils: How to Run a High-Impact Meeting

  • See: Intrafamily Loans: The "Family Bank" Rules

  • See: Prenuptial Agreements: The Constitutional Requirement

  • The Ultimate Guide Part 4 (The Human Element) & Part 5 (The Philosophy of Enough)


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