There is no single standard cost. A single family office with a full in-house team will cost more to run than a lean setup with one or two full-time professionals and other services outsourced. The right budget depends on the family's needs, the work kept in-house, and the services it outsources.

What drives the cost?
The main cost driver is how much work the family handles internally. A full staff means paying for more professionals; a leaner office can keep a small core team and outsource other services. The excerpts do not provide a dollar estimate for either model, so a specific annual budget cannot be given from these sources.
Other choices affect the budget too: which services the family needs, how much investment and administrative work it expects the office to handle, and whether those responsibilities require dedicated staff. Families should define the work first, then decide which roles need to be in-house and which can be outsourced.
Lean office or full team?
A Family Office Club book excerpt describes a single family office with one or two full-time professionals, and no more than three, while outsourcing all other services. It presents this as an alternative for families who find a full staff of 10 to 15 professionals too expensive for their comfort level or wealth. This is a staffing example, not a published cost comparison, so it does not establish how much either model costs in dollars.
A lean structure may suit a family that wants a central point of coordination without hiring a large team. A larger in-house team may make sense when the family wants more work handled directly. In either case, the office still needs a clear plan for responsibilities and outsourced support.
How should a family set its budget?
Start by listing the work the office must do, then estimate the people and outside services needed to cover it. Compare the cost and control of hiring for each function with outsourcing that function. Review the plan as the family's needs change.
The excerpt also cautions that families differ: it says a family with $50 million in wealth may or may not need its own office, while some choose a lean virtual office. These are the author's observations, not a cost rule or a budget threshold. The useful takeaway is to size the structure to the family's actual needs rather than assume every office needs the same team.
Sources
- Family Office Club event transcript
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