Family Office

What is a family office, and when does it make sense?

A family office is a dedicated team that coordinates a wealthy family's entire financial life: investments, tax planning, estate structure, entities, and cash flow, under one roof. A traditional single-family office is usually only economical at roughly USD $100 million and up, ranging into the billions, because you are paying a full staff. Below that, most families are better served by the coordinating function without the overhead.

ModelTypically fitsWhat you getMain trade-off
Single-family office (SFO)USD $100M and up, into the billionsA dedicated in-house team serving one family exclusivelyHigh fixed cost and the burden of running a small company
Multi-family office (MFO)About USD $25M to USD $100MA shared professional team across several familiesLess customization; you share the team's attention
Coordinated fee-only advisory (family-office posture)USD $5M to USD $25MOne fiduciary partner coordinating investments, tax, estate, and entitiesThe firm coordinates your outside CPA and attorney rather than employing them

General ranges only. The right model depends on complexity, not net worth alone.

What a family office actually does

A family office is best understood as a function, not a product. Its job is to keep every part of a family's financial life pointed in the same direction: investment management, proactive tax planning coordinated with your CPA, estate and entity structure coordinated with your attorney, risk and insurance coordination, long-term cash flow, and the education and continuity of the next generation.

The value is in the coordination. Most affluent families do not lack good specialists; they lack a single point of view that makes those specialists work together. When the investment decisions are made with the tax picture in view, and the estate documents reflect the entities, and nothing is optimized in isolation, that is the family-office function at work. For where insurance fits in that picture, see our protection overview; product specifics are handled by the appropriate licensed professionals, not here.

When a single-family office makes sense, and when it does not

A traditional single-family office employs its own people: an investment lead, tax and legal support, administration, sometimes more. That fixed payroll is why it is commonly cited as economical only around USD $100 million and up, ranging into the billions. Running one is, in effect, running a small company.

Below that level, the same coordinating function is available without the overhead, through a multi-family office or a coordinated fee-only advisory relationship. The honest trade-offs: a single-family office gives maximum customization at maximum cost and key-person risk; a multi-family office lowers cost but shares its attention; a coordinated advisory firm keeps your existing CPA and attorney and aligns them, rather than putting them on payroll. None of these structures guarantees a specific tax or investment outcome, and all investing carries risk, including possible loss of principal.

Who this is for
  • Families who want one coordinating partner across investments, tax, estate, and entities, rather than four disconnected specialists
  • Business owners with multiple entities, and founders before or after a liquidity event
  • Multi-generational families focused on continuity, not just this year's return
  • People whose financial life has enough moving parts that coordination has become the bottleneck
Who this is not for
  • Anyone who needs a single product or a one-time transaction
  • Do-it-yourself investors who want minimal involvement from an advisor
  • Households simple enough that one account and a low-cost index fund cover it
  • Shoppers optimizing only for the lowest possible fee

The coordination, without the overhead

This is the model Whitwell & Co. is built on. As an SEC-registered, fee-only fiduciary firm with a family-office posture, we provide the coordinating function for families with USD $5 million or more in investable assets (our ideal client), and actively serve families with USD $2 million or more. We integrate investment management, proactive tax planning, and long-term planning at the intersection of health, wealth, and purpose, coordinating your existing CPA and attorney rather than replacing them.

Consider a founder who has just sold a company for around USD $8 million. She does not want to hire staff and run an office; she wants one team to align the after-tax investment plan, the estate updates the sale now requires, and the entities left over from the business. That is the coordinated, family-office-style relationship, sized to the situation. You can see the thinking behind it in The Whitwell Framework and our fiduciary, fee-only approach.

Family office: common questions

What is a family office?
A family office is a dedicated team that coordinates a wealthy family's entire financial life under one roof: investment management, proactive tax planning, estate and entity structure, risk, and long-term cash flow. The defining feature is coordination. Instead of several specialists working in isolation, one team keeps the whole picture aligned.
How much money do you need for a family office?
It depends on the model. A traditional single-family office, which employs its own staff, is commonly cited as economical only around USD $100 million and up, ranging into the billions, because you are funding a full in-house team. A multi-family office typically serves families from about USD $25 million to USD $100 million, and a coordinated fee-only advisory relationship can deliver much of the same coordinating function from around USD $5 million to USD $25 million.
What is the difference between a single-family office and a multi-family office?
A single-family office serves one family exclusively with its own employed staff, which means maximum customization and maximum fixed cost. A multi-family office shares a professional team across several families, which lowers the cost and the running burden but means you share the team's attention. Many families choose a coordinated fee-only advisory firm as a middle path.
Do I need a family office, or is a fee-only financial advisor enough?
For most families below the single-family-office threshold, a coordinated fee-only fiduciary relationship delivers the coordinating function without the overhead of running an office. The right question is not net worth alone but complexity: multiple entities, concentrated stock, a coming liquidity event, or multi-generational goals are what make coordination valuable.
What does a family office cost?
A single-family office carries the cost of its own staff and overhead, which often runs well into six or seven figures a year to operate. A multi-family office or a coordinated fee-only advisory firm instead charges a transparent advisory fee. Fee-only means the firm is paid only by you and takes no product commissions. No structure guarantees a specific tax or investment result.
Does Whitwell & Co. operate as a family office?
Whitwell & Co. has a family-office posture. It is an SEC-registered, fee-only fiduciary firm that provides the coordinating function, integrating investment management, proactive tax planning, and long-term planning, for families with USD $5 million or more in investable assets (its ideal client), and actively serving families with USD $2 million or more. You can verify the firm on the SEC's public IAPD database (CRD 331958).
Related Questions

A Quiet Invitation

Most families do not need to build an office; they need the coordination an office provides. If your financial life has more moving parts than any one specialist can see, let us map the whole picture together, and show you what a family-office posture would look like sized to your situation. We do not believe in pressure or hard pitches. We believe in the right relationship with the right people at the right time.

Schedule a Family Office Conversation

Educational content on the family-office model, authored by Stefan Whitwell, CFA®, CIPM, CEO and Chief Investment Officer of Whitwell & Co., LLC. Not individualized investment, tax, or legal advice. Asset ranges are commonly cited industry figures, not thresholds set by the firm. Coordinate specific decisions with your CPA and attorney.