Answer
Setting up a traditional single-family office often requires a minimum net worth of $100 million USD or more, due to high operational costs (legal, accounting, staff, tech).
However, multi-family offices lower this barrier—usually accessible for individuals or families with $5 million to $25 million USD in investable assets. These platforms offer pooled resources, shared advisors, and scalable services. For mid-tier wealth holders, engaging with a virtual or modular family office solution can provide similar benefits at reduced cost.