What a Multi-Family Office Is
A multi-family office (MFO) is an advisory firm that provides integrated wealth management services — investment oversight, tax planning, estate structuring, concierge support — to a roster of UHNW families, typically with $50 million or more in investable assets. Unlike a private bank, an MFO’s revenue derives from advisory fees rather than product distribution, which removes a significant structural conflict of interest. Unlike a single-family office, the costs are shared across clients.
The Service Model
Leading MFOs operate as the principal’s professional household — coordinating advisers, managing reporting, overseeing external managers, and providing the administrative infrastructure that wealth at scale requires. Some maintain in-house investment teams; others act as pure coordinators of external specialists. The distinction matters: principals who want an MFO to make investment decisions need one with credentialed investment staff; those who have existing manager relationships may prefer a model that aggregates and reports rather than manages.
Evaluating Conflicts
Not all MFOs operate on a pure advisory basis. Some accept soft commissions, retrocessions from product providers, or referral fees from service vendors. These arrangements are not always disclosed proactively. Principals conducting due diligence should request full conflict-of-interest disclosure, ask for a complete fee schedule across all revenue streams, and have their legal counsel review engagement terms before signing.
Due Diligence Questions
The right questions include: How many families does the firm serve, and at what average asset level? What are the credentials and tenure of key staff? Does the firm have a succession plan — are principals at risk of service disruption if a founding partner departs? How is performance measured and reported? What technology platform underpins reporting, and can it consolidate all assets including illiquid alternatives and direct holdings?
When to Consider Upgrading
Principals who have outgrown a private bank’s service model but are not yet at the scale to justify a dedicated single-family office typically find MFOs the right solution. The threshold for forming a dedicated family office is generally $250 million or more in liquid assets; below that, the cost-benefit analysis usually favours a high-quality MFO relationship.
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