A Chief of Staff in a family office is the principal's operational right hand. Not an assistant. Not a secretary. A CoS is the person who decides what reaches the principal, owns cross-adviser coordination, and makes sure the family's decisions actually get executed. When the role is defined well, the office runs quietly and the principal's time is protected. When it is defined badly, the role collapses into diary management or dies altogether.
Most mis-hires in this seat are not candidate failures. They are structural failures. A Chief of Staff cannot function without a clear mandate, and most principals struggle to write one. That is why the first conversation Oplu has before any search begins is about scope, authority, and decision rights.
This guide covers what the role does, how it differs from an EA or senior PA, how to structure it so the hire succeeds, and what it pays. If you are reading this because you are thinking about hiring your first Chief of Staff, see our Chief of Staff recruitment page for the current brief structure we use with clients.
The CoS role varies by office, but the core is constant. A Chief of Staff owns three things: decision cadence, stakeholder coordination, and execution. Everything else flows from those three.
Decision cadence. The CoS controls what the principal sees, when they see it, and in what format. A principal has a finite amount of decision quality per day. The CoS protects it. That means filtering inbound requests, sequencing decisions, consolidating adviser input, and making sure the right information arrives in the right shape before the principal is asked to decide. In a well-run office, the principal walks into a decision ready to make it. That readiness is the CoS's job.
Stakeholder coordination. A family office sits at the centre of a web of advisers: lawyers, accountants, investment managers, property teams, household staff, philanthropic partners, PR, security, and often an extended family. Each adviser wants direct access. Each thinks their matter is the priority. Left unmanaged, the principal spends their day on coordination instead of decisions. The CoS coordinates across the web, closes loops, and ensures nothing falls between the cracks.
Execution. A family office generates decisions constantly. Buy the house. Hire the director. Exit the position. Restructure the trust. Without a clear owner, these decisions drift. The CoS owns delivery. That means tracking what was agreed, who owns it, by when, and what happens if it slips.
If the role has no real authority, it will stall. A Chief of Staff without the ability to convene advisers, hold them accountable, and close decisions on the principal's behalf becomes a meeting organiser. The title is cosmetic, and the person leaves within eighteen months.
The three titles are used interchangeably in many offices, but the roles are not the same. Hiring the wrong one is the most expensive mistake a family office makes in its support function.
An Executive Assistant manages the principal's professional workflow. Diary, inbox, travel, board materials, stakeholder access. The role is execution-heavy and information-dense. A strong EA is worth their weight in gold, but the scope sits beneath the strategic layer. An EA follows decisions. A Chief of Staff makes sure decisions happen.
A Senior PA often blends professional and personal support. Travel logistics, household coordination, family diary, personal tasks, some professional admin. Closer to a private PA in function. Again, the scope is operational, not strategic.
A Chief of Staff is a different kind of role entirely. A CoS is hired to own outcomes, not tasks. They close decisions. They hold advisers accountable. They set the rhythm of the office. The best CoS hires we have placed sit halfway between a Chief Operating Officer and a consigliere. They are trusted to act on the principal's behalf within a defined mandate, and they exercise that authority without constant check-in.
The confusion arises because senior EAs and PAs drift into CoS-adjacent work over time. A PA who has been with a principal for seven years knows everyone, owns every relationship, and effectively coordinates the office. When the office grows, the principal promotes them to Chief of Staff. Sometimes that works. Often it does not. A seasoned EA is not automatically a Chief of Staff. The skills are different. The authority needed is different. When the office outgrows informal coordination, the gap becomes visible fast.
Not every family office needs a Chief of Staff. Some run well for years on a tight combination of a Family Office Director, a senior EA, and external advisers. The CoS role is justified when three conditions hold.
The first is scale. Once the office employs more than a handful of people, or coordinates multiple external adviser relationships across jurisdictions, informal coordination breaks down. Someone needs to own the operating rhythm.
The second is decision volume. Families with active investment portfolios, multiple property holdings, philanthropic programmes, and complex tax structures generate decisions faster than any single principal can absorb. The CoS compresses that volume into a manageable flow.
The third is intent. Some principals want to be involved in every decision. A Chief of Staff cannot function in that environment. If the principal wants to remain the only decision-maker, the hire will stall. The role only works when the principal is willing to delegate decision rights within a defined mandate. Without that, the CoS becomes an expensive diary manager.
The most common reason a Chief of Staff hire fails is that the role was never properly scoped. Principals know they need help but struggle to write what help looks like. A good scoping conversation answers four questions before any candidate is approached.
What decisions can the CoS close without the principal? If the answer is "nothing," the role will not work. Define the budget threshold, the decision categories, and the approval rhythm. A CoS who needs to check in on every decision becomes a bottleneck, not a multiplier.
Who does the CoS hold accountable? A Chief of Staff is useless without authority over advisers, staff, and external partners. Name the reporting lines. Clarify who the CoS can instruct, who they coordinate with, and who sits outside their remit. Ambiguity here is the single largest cause of early turnover.
What is the operating rhythm? How often does the principal meet with the CoS? What is the format? What gets decided in those meetings and what is delegated? Offices that run on ad hoc contact tend to generate drift. The best CoS seats have a weekly cadence and a clear forward agenda.
What does success look like in twelve months? Most principals have not thought about this. They know what the problem feels like, but not what solving it looks like. Writing this down forces clarity and creates the yardstick by which the hire is judged.
PAs, EAs, and Chiefs of Staff absorb hours. There is no overtime, no time-and-a-half. The salary covers everything, and the hours are long. Candidates know this. The ones who last are the ones who knew it before they accepted.
A Chief of Staff in a single family office is a senior hire and paid accordingly. The ranges below reflect permanent, full-time placements at the UHNW level.
United Kingdom:
Chief of Staff (small family office, 3-5 staff): £90,000-£130,000
Chief of Staff (mid-size single family office): £130,000-£180,000
Chief of Staff (large single family office, complex structure): £180,000-£250,000+
United States:
Chief of Staff (New York, San Francisco, LA): $200,000-$400,000
Senior Chief of Staff (large SFO, complex multi-entity): $350,000-$600,000+
Middle East, Switzerland, Hong Kong:
Chief of Staff: packages typically equivalent to US base plus tax-advantaged structures and relocation
Total compensation often includes a discretionary bonus of 20-50% of base, private health insurance, pension or equivalent, and in some structures co-investment rights or carry in family-sponsored investment vehicles. The headline base is rarely the whole story. For context, we have placed senior support professionals who have received annual bonuses larger than most published CoS salaries.
Generic Chief of Staff data published on career sites tends to sit well below these figures because it aggregates corporate CoS roles in start-ups and mid-market firms. A family office Chief of Staff operates in a different market with a smaller pool and higher demand for demonstrated track record.
Technical competence is the baseline. The difference between a good CoS and a great one comes down to a narrow set of qualities that are hard to assess on paper.
Judgement under ambiguity. A family office generates decisions that have no obvious right answer. The CoS must hold the risk of being wrong without paralysis and without over-escalation. Candidates who need to check every call will exhaust the principal. Candidates who decide on everything will breach the mandate within a quarter.
Reading a room. Families carry dynamics. The principal's spouse has preferences. The adult children have views. Advisers have agendas. A strong CoS reads these quickly, navigates them without taking sides, and keeps the office functional across the dynamics. Candidates who treat this as office politics do not last.
Written clarity. A CoS communicates constantly: with the principal, advisers, staff, and external partners. The quality of their writing shapes the quality of the office. A one-paragraph decision memo that closes an adviser loop is worth more than a three-page report nobody reads.
Calm under pressure. Something goes wrong in a family office every week. A property emergency, an adviser misstep, a family disagreement, a tax deadline, a staff issue. The CoS absorbs it. The principal should never feel the turbulence. That absorption is the core skill.
Comfort with invisibility. Chiefs of Staff rarely get credit. When the office runs smoothly, it looks effortless. When it fails, the CoS is blamed. Candidates who need visible recognition do not thrive in this seat.
Oplu has placed Chiefs of Staff into single family offices, multi family offices, and private principal offices across the UK, US, and Middle East. We work on retained mandates for this role because the search requires depth: the candidate pool is small, the best people are not looking, and cultural fit is as important as CV fit.
Our process starts with scoping. Before any candidate is approached, we agree the mandate, the decision rights, the reporting lines, and the operating rhythm with the principal or the Family Office Director. Most of the difficult questions in a CoS hire get answered in that conversation, not during interviews. We then approach a shortlist of candidates directly, many of whom are currently in-seat and not on the market. Each candidate we present has been interviewed by us in depth and assessed against the specific mandate, not a generic job description.
We do not send long CV stacks. A typical CoS shortlist from Oplu is three to five candidates, each with a written profile covering operating style, decision approach, and where they will and will not thrive. The goal is fewer interviews, not more.
For current opportunities, see our job board. To discuss a Chief of Staff search, get in touch.
A Chief of Staff in a family office is the principal's operational right hand. They own decision cadence, coordinate across advisers and staff, and ensure decisions made in the office are actually executed. The role is strategic and requires genuine authority, not just administrative support.
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