What is a multifamily office?

A multifamily office is a business that helps several families manage their financial affairs through shared staff and systems, with support from outside specialists. Often called an MFO, it can coordinate investments with matters such as tax planning, estate planning, reporting and family administration, depending on the services in its agreement.

How a multifamily office works

A multifamily office brings related financial tasks into a coordinated service. A family may have investment accounts, business interests and property, along with trusts that involve different professionals. The MFO can help organize information and communication across those relationships.

Families share the firm's resources, but they retain separate assets and objectives under individual service agreements. Sharing an office does not mean that every family invests together or receives the same services. The scope depends on the firm's capabilities and the family's arrangement with it.

The term describes an operating model. It does not, by itself, establish a particular service package, fee structure or legal duty. Those details belong in the firm's disclosures and engagement documents.

What services can it provide?

Some MFOs focus on investment management. Others also coordinate administrative work and planning across a family's finances. Services may be delivered by employees, outside professionals or a combination of both.

• Investment management, asset allocation and manager review.
• Tax and estate planning coordination with relevant professionals.
• Insurance review and philanthropic planning.
• Financial reporting, bill payment and record organization.
• Education for younger family members and support for family discussions.
• Concierge services and other personal administration.

A service list does not explain who is responsible for each task. Coordination with an attorney, for example, differs from providing legal services. The agreement should distinguish work the MFO performs from work handled by an outside provider.

Investment capabilities also vary. Richard Wilson of Family Office Club says most MFOs offer limited support for direct deals. Access to an MFO therefore does not automatically include a team dedicated to sourcing and managing direct investments.

How it differs from other family office models

A single family office, or SFO, works for one family. That family supports its staff and operating arrangements. An MFO works for several families, allowing them to share access to personnel and systems.

A virtual family office typically coordinates independent professionals through an outsourced structure. An embedded family office operates within a family business or another existing organization. A hybrid model combines internal staff with outside providers.

These categories can overlap in practice. A family with its own office may still use an MFO for selected functions. Family Office Club research also describes investment services as one part of the wider family office offering. An outsourced chief investment officer focuses on investment oversight, while an MFO's agreed responsibilities may extend into administration and planning.

Who uses a multifamily office?

Families may consider an MFO when their financial affairs require ongoing coordination. Relevant circumstances can include a business sale, a generational transition, assets held through several entities or responsibilities spread across multiple advisers.

There is no universal asset threshold that determines when a family needs an office. Family Office Club research records differing views. Erulin says there is no fixed minimum. Any published entry requirement describes that provider's policy, not a rule for all families.

Complexity also matters. Two families with similar assets can have different needs because of business ownership, family structure or administrative demands. Some MFOs specialize by profession or nationality. Understanding that focus helps explain whom the service is designed to support.

Fees, responsibilities and service boundaries

MFO fees can take several forms, including a flat charge, a retainer or a schedule based on assets under management. Richard Wilson of Family Office Club says charges vary with services, and that concierge and philanthropic work, along with legal or fund work, may carry extra charges.

A stated fee therefore needs context. Its meaning depends on the work included, outside provider costs and any separate investment expenses. A percentage fee and a flat fee cannot be compared meaningfully without understanding their respective scope.

Responsibilities also require clear definitions. Family Office Club research cautions that some engagement terms may disclaim fiduciary duty. The MFO label alone does not establish that duty across every service. Product sales and commissions, along with related business relationships, can also create conflicts that require disclosure.

Written terms can explain reporting frequency, data access, privacy practices and how an engagement ends. These details help a reader understand how the relationship operates. This page provides general education, not investment, tax or legal advice.

FAQs

Does a multifamily office hold the family's assets?

Not necessarily. Managing or reporting on assets is different from holding them in custody. The arrangement should identify the institutions holding assets and explain the MFO's authority over accounts.

Does every multifamily office offer the same services?

No. Some concentrate on investments, while others include planning coordination and administration. A firm's service agreement defines what it provides and which tasks remain with outside professionals.

Can a family use an MFO alongside its own office?

Yes. Family Office Club research describes families with their own offices using MFOs and private banks for selected functions. The division of responsibilities depends on the arrangement.

Sources

• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database
• Family Office Club research database

Related: all guides, the directory, calculators. For events and peer access, see FamilyOffices.com.