Single-Family Office vs Multi-Family Office: How to Choose
The decision is rarely about cost. It is about control, alignment, and how much governance overhead a family wants to own.
Key takeaways
- —Single-family offices give full control; multi-family offices share infrastructure.
- —Cost crossover sits roughly between $250M and $500M of investable assets.
- —Multi-family offices vary widely on independence, fees, and conflict structure.
- —A hybrid — outsourced operations, in-house governance — works for many families.
A single-family office (SFO) employs staff who serve only one family. Control is total; governance is the family's burden; the cost of running a meaningful team rarely falls below $1.5–2.5M annually. A multi-family office (MFO) shares infrastructure across many families, lowering the per-family cost dramatically but introducing trade-offs in alignment and bespoke service. Both structures can serve well — the failures usually come from picking the wrong one for the family's complexity.
Below $250M of investable assets, the SFO economics rarely make sense. Above $500M they often do. Between those, the deciding question is governance: is the family ready to be the employer of senior professionals and own the management overhead? Many families settle in a hybrid pattern — outsourcing investment operations, accounting, and reporting to an MFO while keeping governance and family-facing roles in-house. That hybrid is increasingly the median answer.
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