Le guide des conseillers en family office : qui doit faire quoi ?

Wealthy families rarely begin with a deliberately designed adviser structure. More often, they accumulate one.

A private bank is appointed after a liquidity event. A tax adviser is retained in the country where the principal lives. A second lawyer appears when property is bought abroad. A trustee or fiduciary specialist manages one structure. An external asset manager oversees part of the portfolio. A reporting provider is added when the family can no longer see everything in one place. Over time, the family may be surrounded by capable professionals, each doing a defined job, while no one is clearly responsible for the whole picture.

This is where risk begins to hide. Not in the absence of expertise, but in the gaps between experts.

For internationally mobile families, Switzerland often becomes the place where this fragmentation becomes visible. A family may move residence to Switzerland, open Swiss banking relationships or use Swiss advisers while retaining companies, trusts, property and family members abroad. The Swiss private-banking ecosystem is highly developed, but even the best bank does not automatically coordinate every lawyer, fiduciary, tax adviser, asset manager and reporting provider involved in the family’s affairs.

That is why many wealthy families need an adviser map before they need another adviser.

An adviser map is a clear record of who advises the family, what each provider does, what information they hold, who may instruct them, how they are paid and when their work is reviewed. It sounds administrative. In practice, it is a governance tool. It shows whether the family has a coherent operating structure or merely a collection of impressive names.

The Problem Is Usually Not Too Few Advisers

A family with significant wealth can usually find expertise. In Switzerland, this expertise is abundant: private banks, external asset managers, lawyers, fiduciaries, trustees, tax specialists, family-governance advisers, philanthropy consultants, cybersecurity firms and reporting platforms all operate within a sophisticated wealth-management ecosystem.

The difficulty is that expertise is often appointed reactively. A new issue appears, a new adviser is added and the structure expands without being redesigned.

This can remain manageable while the founder or principal is personally coordinating everything. He knows why one bank was chosen, which lawyer understands the old holding company, which adviser should be called before a property sale and which investment manager should not be given too much discretion. The problem is that this knowledge often sits in one person’s memory rather than in the family’s records.

A family may therefore appear well advised while remaining operationally fragile. If the principal is unavailable, if the next generation takes over, or if a cross-border tax issue arises, the family may discover that no one has a complete list of advisers, mandates, fees, documents and open issues.

The adviser map is designed to prevent that moment.

What An Adviser Map Should Show

At its simplest, an adviser map should answer six questions.

Who advises the family? What exactly do they do? Which family members, entities or assets do they serve? What documents or data do they hold? How are they paid? Who has authority to instruct them?

This should cover more than the obvious providers. Families often remember the private bank and the lawyers, but forget insurance brokers, property managers, accountants attached to foreign companies, corporate-service providers, art-storage firms, IT administrators, trustees, foundation board members, aircraft or yacht managers and legacy advisers who are still holding important information.

The map should also distinguish between advice and execution. A tax lawyer may advise on a restructuring, while a fiduciary executes documents and maintains company records. A private bank may provide custody, while an external asset manager makes portfolio decisions. A reporting provider may aggregate data without being responsible for investment judgement.

Confusion begins when these roles are blurred. If a bank relationship manager is treated as the coordinator for all family matters, the family may receive helpful introductions but not independent oversight. If a trustee is expected to provide investment judgement beyond its mandate, the family may misunderstand fiduciary responsibility. If an external asset manager is assumed to monitor tax consequences, an investment decision may be implemented before the right tax adviser has been consulted.

The adviser map forces these distinctions into the open.

Switzerland Makes Coordination More Important, Not Less

Switzerland’s appeal to international families is real: political stability, strong financial infrastructure, experienced private banks, professional advisers and deep cross-border wealth expertise. But foreign families should not confuse Swiss organisation with automatic simplification.

A family moving from London to Geneva may still hold UK property, a family business in Germany, private funds domiciled in Luxembourg, a foundation in Liechtenstein and children resident in the United States or France. A Swiss bank may hold a significant portfolio, but the family’s legal, tax and succession reality remains international.

This matters because Swiss advisers will often see the Swiss-facing part of the structure. The bank sees the accounts it holds. The Swiss tax adviser sees Swiss residence and reporting. The fiduciary sees the entities it administers. Foreign counsel sees local issues in another jurisdiction.

No single adviser should be assumed to see everything unless explicitly mandated to do so.

The adviser map should therefore mark jurisdiction clearly. Which adviser covers Swiss tax? Who advises on UK inheritance tax? Who reviews French real estate exposure? Who understands US persons in the family? Who coordinates company law in the country where the operating business is located? Which adviser is responsible for checking whether a recommendation in one jurisdiction creates a problem in another?

For internationally mobile families, the coordination layer is not optional. It is where much of the value is created.

Map Private Banks By Function, Not Prestige

Many wealthy families maintain more than one banking relationship. There may be good reasons for this: counterparty diversification, lending capacity, geographic access, currency needs, investment expertise or family preference. Since the collapse of Credit Suisse and its integration into UBS, some families have also become more conscious of concentration risk within Swiss banking relationships.

Multiple banks, however, create their own problems. Each bank reports differently. Asset classifications vary. Performance calculations may not be directly comparable. One bank may hold pledged assets, another may provide credit, while a third may present private-market products. Without consolidation, the family may not know its true exposure, liquidity or total cost.

The adviser map should specify each bank’s role. Is it the primary custodian? A lending bank? A regional access point? A transactional account? A private-market source? A legacy relationship retained for personal reasons?

This prevents emotional or historical banking relationships from being mistaken for strategic ones. It also makes fee review easier. A bank that provides excellent lending and execution may justify its place even if it does not run the whole portfolio. A bank that holds a small legacy account with high charges and limited service may not.

The question is not how prestigious the bank is. It is what function it performs in the overall family architecture.

Define The External Asset Manager’s Mandate Clearly

An external asset manager can be valuable when the family wants investment oversight separated from custody. In the Swiss context, this model is well established, and portfolio managers and trustees operating under the relevant framework require FINMA authorisation when they meet the applicable conditions.

The family should still be precise about the mandate. Does the external asset manager manage all liquid assets or only selected portfolios? Can it place trades across several custodian banks? Does it advise on strategic asset allocation, manager selection, private-market commitments and liquidity planning, or only on listed securities? Does it receive any retrocessions, referral fees or other third-party compensation?

The adviser map should show which assets are under discretionary management, which are advisory and which remain directed by the family. This distinction matters. If an investment performs poorly, the family must know who had authority to approve it. If a liquidity problem arises, it must know whether the asset manager was responsible for monitoring unfunded commitments or only for managing listed securities.

A good external asset manager can challenge a bank’s product proposal, negotiate custody conditions and maintain continuity if the family changes banks. But the family should not assume that an external manager automatically coordinates tax, fiduciary, legal and governance issues. Unless that responsibility is explicit, it probably does not exist.

Tax Counsel Must Be Organised By Jurisdiction And Decision Type

Tax advice becomes complicated when family members, assets and structures cross borders. Switzerland participates in the automatic exchange of financial-account information, and Swiss financial institutions operate within an international transparency framework. Families should therefore assume that tax residence, beneficial ownership and reporting classifications matter from the beginning, not after a transaction has already been executed.

An adviser map should identify which tax counsel covers which jurisdiction and which types of decision require advance tax review. These may include changes of residence, gifts, distributions from structures, property sales, company dividends, loans to family members, private-equity exits, philanthropy, inheritance planning and restructuring of holding companies.

The practical value lies in timing. A family should not call tax counsel after signing a term sheet, transferring funds or moving residence. The adviser map should show when tax input is required and who triggers it.

For example, a Swiss-resident principal may wish to gift assets to a child living abroad. The Swiss treatment may be only one part of the answer. The child’s country of residence may treat the gift differently. If the asset is held through a company or trust, the analysis becomes more complex. A private bank may execute the transfer efficiently, but it should not be the only adviser involved in deciding whether the transfer is sensible.

Tax counsel should not be scattered around the family as emergency contacts. It should be built into the decision process.

Fiduciary Specialists Need A Separate Line Of Accountability

Structures require maintenance. This is where many families underestimate fiduciary work.

A trust, foundation, holding company or family investment vehicle is not finished when it is created. It may require board or trustee meetings, accounts, registers, minutes, resolutions, beneficiary records, compliance checks, tax filings, document retention and careful handling of distributions or loans.

A fiduciary specialist may administer these structures, but the family must understand exactly what is being administered and who is responsible for what. The adviser map should identify each entity, its governing documents, administrator, directors or trustees, authorised signatories, bank accounts, reporting obligations and key dates.

This is particularly important when a foreign family comes to Switzerland with structures created elsewhere. A company or trust that made sense under a previous residence, tax regime or family stage may need review. The fiduciary may be maintaining it properly from an administrative point of view while broader advisers need to decide whether the structure still serves the family’s long-term purpose.

The adviser map should also show who reviews the fiduciary. Trustees and administrators should not operate without oversight simply because their work is technical. The family, family office or lead adviser should periodically review whether structures remain necessary, properly documented and aligned with succession planning.

Consolidated Reporting Is Not Just A Technology Service

A reporting provider is often introduced when the family can no longer see its wealth across banks and asset classes. This can be a major improvement, but only if the provider’s role is understood.

Consolidated reporting is not the same as investment advice. It may show exposure, performance, fees, liquidity and asset allocation, but someone still has to interpret the numbers and decide what to do. It may collect data from banks and managers, but someone must verify whether the classifications are correct. It may display private assets, but someone must maintain valuation dates and assumptions.

The adviser map should state whether the reporting provider merely aggregates data or also supports analysis, investment operations and document management. It should show who approves manual entries, who resolves discrepancies and who can access the dashboard.

For families in Switzerland, consolidated reporting is especially useful when there are multiple custodian banks, private-market commitments and cross-border assets. A family may have Swiss accounts but non-Swiss companies and properties. If the reporting system covers only bankable assets, it may create the illusion of completeness while excluding the very items that drive risk.

A good report does not only show what is easy to price. It shows what the family needs to know.

Decide Who Coordinates Everyone

This is the central question. An adviser map is only useful if someone owns it.

The coordinator may be a family-office executive, a multi-family office, a trusted external adviser, a financially experienced family member or a small governance committee. The right answer depends on scale, complexity, trust and cost. What matters is that the role exists.

The coordinator should maintain the adviser list, organise regular reviews, track open issues, ensure documents are stored properly, confirm that decisions are assigned to the right advisers and prevent duplication. The coordinator should also know when advisers need to speak to one another.

For instance, an investment sale may require input from the asset manager, tax counsel and possibly fiduciary administrator. A property purchase may involve the bank, tax adviser, lawyer, insurance broker and reporting provider. A family distribution may require trustee, tax and governance input. If these conversations happen separately, the family becomes the integration point. That may work for a capable founder, but it is not a durable operating model.

Coordination does not mean that one adviser dictates every decision. It means someone ensures that the right people are involved before the decision becomes expensive to correct.

Watch For Conflicts And Commercial Links

An adviser map should include how each provider is paid and whether there are commercial links to other providers. This is not an accusation. It is basic governance.

A private bank may recommend investment products. An external asset manager may receive retrocessions unless waived or passed on. A multi-family office may have preferred providers. A fiduciary may refer the family to affiliated legal or tax advisers. A consultant may be compensated for implementation work after recommending a system.

Some arrangements may be perfectly acceptable when disclosed and understood. Problems arise when families assume independence without testing it.

The map should therefore record fee structures, referral arrangements, product compensation and ownership links where relevant. The family should ask whether recommendations are open architecture, whether third-party payments are received and whether advisers are willing to document conflicts.

In Switzerland, the professional environment is relationship-driven, and trusted networks can be useful. But trust should be supported by transparency, particularly when large portfolios, structures and family decisions are involved.

Review Advisers Annually

Adviser relationships often continue because no one wants to revisit them. This is understandable. Changing banks, lawyers, fiduciaries or reporting providers is time-consuming and can feel disruptive. Yet unmanaged adviser drift is one of the quiet costs of wealth.

The family should review advisers at least annually. This does not need to be hostile or bureaucratic. The review should ask whether the provider still has a clear role, whether the quality of advice remains high, whether fees are appropriate, whether responsiveness is acceptable and whether conflicts have changed.

Continuity should be considered too. Is the relationship dependent on one individual? What happens if the banker, lawyer, trustee or portfolio manager retires or changes firms? Is institutional knowledge documented, or does it live in personal correspondence?

The review should also look for duplication. Two advisers may be producing similar reports. Two banks may be offering overlapping mandates. Several lawyers may be advising on adjacent issues without coordination. The purpose of the map is not to reduce the adviser base to the minimum number possible, but to ensure every provider has a reason to remain.

Red Flags That The Map Is Needed Urgently

Several warning signs suggest that adviser coordination has become a risk.

The family cannot name all advisers and providers involved in its affairs. No single document lists banks, legal entities, mandates, fees and key contacts. Advisers rarely speak to one another. One family member or founder holds most institutional memory. Reporting arrives from several providers but is not reconciled. The family does not know who may approve payments or instruct banks. Tax advisers are consulted after transactions rather than before them. Private-market commitments are not centrally tracked. Important documents sit in personal inboxes. No one reviews whether old structures remain appropriate.

These problems do not always produce immediate damage. That is why they persist. But when illness, succession, litigation, relocation or market stress appears, the cost of unclear coordination rises quickly.

What Good Looks Like

A well-managed adviser structure feels calmer. The family knows who does what. The private bank remains important, but it is not asked to perform every role. The external asset manager’s authority is clear. Tax counsel is brought in before relevant decisions. Fiduciary specialists maintain structures properly. Reporting providers show the full picture rather than a partial portfolio. A coordinator ensures that advisers speak to one another when decisions overlap.

The family also has better conversations. Instead of asking, “Who should we call?” it asks, “Which advisers need to be involved in this decision?” Instead of relying on the founder’s memory, it relies on a documented operating system. Instead of adding advisers whenever uncertainty appears, it first checks whether an existing provider already owns the issue.

For foreign families using Switzerland as a wealth-management hub, this discipline is essential. Switzerland can provide first-class banking, fiduciary, tax and investment expertise, but the family must still organise how those advisers work together across borders.

The adviser map is not a formality. It is the family’s control panel.

It shows where expertise sits, where responsibility ends and where coordination is missing. Without it, more advisers may simply create more complexity. With it, the family can use Swiss and international expertise with greater confidence, clearer accountability and fewer expensive surprises.