Build a Lean Family Office: Part 3 of 5

In part 3 of a 5-part series on how to build a lean family office, I'm covering pillar 3 of the Blueprint: Coordination and Control.

The first two pillars of a lean family office are about setting the frame and building visibility. You wrote a charter that defines why the wealth exists and how decisions get made. You built a wealth map and a Single Source of Truth that tells you where everything is. You established a reporting cadence so the picture stays current.

What most people discover at this point is that the advisors are still doing largely what they were doing before. The tax advisor is preparing returns. The investment advisor is managing the portfolio. The estate attorney is maintaining the structures. Each one is competent. Each one is doing their job.

And nothing is being coordinated.

This is the most common gap in informal family office setups, and it's the hardest to see from inside it. The advisors are accountable to their own mandates, not to a shared outcome. The tax advisor doesn't know what the investment advisor just executed. The estate attorney doesn't know what the investment committee decided last quarter. The principal sits at the center of all of it, fielding questions from six directions, and somehow expected to hold the integrated picture in their head.

That's not a gap in advisor quality. It's a structural gap. The missing function is coordination.

Pillar 3: Coordination and Control

The third pillar is about who runs the operation. Not who advises. Who runs.

The coordinator function is the single most important missing piece in most informal family office setups at this tier. A coordinator for a family office holds the full financial picture before any advisor meeting. They prepare the briefing pack. They follow up on action items. They manage the information flow so that the principal's time is reserved for decisions, not for administration.

They are accountable to the family, not to any institution. That distinction matters, because every other advisor in the setup has a primary relationship with their firm. The coordinator has a primary relationship with the principal.

In practice, this role can be fractional at first or full-time, depending on complexity and arrangement. But in its absence, the principal ends up filling the gaps.

Advisor coordination

The coordinator's first real test is managing the advisor roster. Most principals have advisors who were brought in separately, over time, who have never been formally oriented to the full picture. The onboarding process for a new advisor in a lean family office involves five things: sharing the charter, sharing the relevant portion of the wealth map, establishing a communication protocol, documenting the service scope and fee structure, and defining what reporting is expected from them and when.

That process, applied to every existing advisor, takes a few weeks of concentrated effort. The output is an advisor inventory, a single document that lists every advisor, what they do, what they cost, how they are measured, and when their engagement is reviewed. Most principals, when they build this inventory for the first time, are surprised by the total cost. They are more surprised by how few of the advisors know what the others are doing.

The single action that closes most of this gap is the quarterly advisor coordination call. It doesn't need to be a formal committee meeting. It's a structured conversation between the coordinator and the relevant advisors, with an agenda built from the current state of the wealth map and the action items from the last quarter. The coordinator owns the agenda and the follow-up. The advisors attend and respond. The principal reviews the output, not the process.

Cash, compliance, and the monthly close

The other three steps in this pillar are the operational layer that makes coordination real.

Cash and treasury management means having a documented liquidity ladder, a tiered structure that defines how much cash is held in immediate operating accounts, near-cash savings, and short-term liquid investments. It means having a signed bank permissions register that documents who has signing authority, at what thresholds, and what dual-control requirements apply. And it means having a documented process for every payment, including an intake channel, approval rules, and proof of payment stored in the SSOT. Fraud at the payment level is more common than principals realize. Documented controls are the defense.

Tax and compliance management means having one place where every filing deadline lives, federal, state, entity-level, and cross-border if applicable. Missing a tax deadline is expensive. Missing a compliance deadline for a foreign structure can be catastrophically expensive. A compliance calendar, owned by the coordinator and reviewed quarterly, is the minimum viable control.

The monthly close is the rhythm that holds everything together. By the end of the first week of each month, the prior month's books should be closed, reconciled, and filed. The monthly reporting pack should be produced and reviewed. Action items from the prior period should be checked. This is not an accounting exercise. It's an operating discipline. When the close slips, everything downstream slips with it, the reporting gets stale, the decision quality degrades, and the coordinator loses the thread.

What this looks like in practice

For advisors reading this: a family that has a coordinator changes how you work. There is someone who holds the full picture before you arrive at the meeting. There is someone who follows up after. Your recommendations land in a context that is already organized. The advisor who resists this structure, or who tries to work around the coordinator, is usually the one whose mandate would not survive full scrutiny in an integrated view.

For principals: the test of whether the coordinator function is working is simple. If you are answering day-to-day operational questions from advisors, handling invoice approvals below your threshold, or preparing your own briefing materials before meetings, the coordinator function is either not in place or not being used. The goal is for your time to touch only decisions, not the process that surrounds them.

This week's action

Build an advisor inventory. List every advisor currently engaged, what service they provide, what the annual cost is, what reporting you receive from them, and when that engagement was last reviewed. Do this without going to each advisor for the information. Use what you already know. The gaps in what you can fill in without asking are the gaps in your current integration.

If you can't complete the inventory from memory and your existing files, you've found this week's work.

Next week, I'm going to cover: Pillar 4 — Investment & Risk: the investment policy most founders don't have, and why operating without one is not a strategy.