The First 90 Days: Turning the Lights On

Why the First 90 Days Matter

Standing up a family office is not the same as operating one. The legal entities may be formed, the organizational chart drafted, and the purpose defined — but until accounts are open, systems are live, and people know who approves what, the office exists only on paper. The first 90 days are the window when good habits either get built or get skipped, and skipped habits tend to become expensive problems later.

This guide follows the practical sequence that families commonly work through after completing the earlier planning steps described in How to Build a Family Office From the Ground Up. Think of it as turning the lights on, room by room.

Banking and Custody Setup

Banking and custody are the circulatory system of the office. A custodian is the institution that holds and safekeeps investment assets — securities, cash, and similar positions — on the family's behalf. Custody and banking are often handled by different institutions, and many families open accounts at more than one bank to reduce concentration at any single counterparty.

Common early tasks include opening operating accounts for the management company, establishing custodial accounts for investable assets, and setting up a dedicated payroll account if the office has employees. Each account opening requires corporate formation documents, taxpayer identification numbers, and Know Your Customer verification — the identity and source-of-funds checks banks are legally required to perform. Gathering this paperwork in advance saves weeks.

Families also commonly arrange a line of credit early, even if they do not intend to use it immediately. Having liquidity available before it is urgently needed is far easier than scrambling for it later.

Wire Controls and the Approval Matrix

Wire fraud is one of the most common and costly threats facing family offices. The moment a bank account has a meaningful balance, it becomes a target for social engineering — manipulation tactics that trick employees or family members into authorizing fraudulent transfers. Establishing controls before the first wire is sent is far safer than adding them after an incident.

An approval matrix is a written schedule that defines who can authorize payments, at what dollar amounts, and whether a second approver is required. For example, a family office might allow the controller to approve routine vendor payments below an illustrative threshold, while any wire above that amount requires co-signature from a senior officer. This principle is called dual control.

The approval matrix should be documented, signed off by the principal or governing body, loaded into the banking portal as formal user permissions, and reviewed at least annually. It is one of the simplest controls a family office can implement, and one of the most effective. More on the broader landscape of controls appears in Bill Pay, AP, and Financial Controls.

Document Collection and the Data Room

A new family office typically inherits decades of financial history scattered across personal email accounts, accounting firms, law offices, and filing cabinets. Consolidating that history is painstaking but necessary. A data room — a secure digital repository for sensitive documents — is the standard way to organize and store this material.

Documents families commonly collect in the first 90 days include estate planning instruments (wills, trust agreements, powers of attorney), entity formation documents for every LLC or partnership in the family structure, prior-year tax returns, insurance policies, real estate deeds and loan documents, and brokerage and custody statements going back several years. The goal is to have one authoritative place where any authorized team member can find any critical document.

The document collection process often surfaces surprises — policies with lapsed premiums, entities that were never properly maintained, or missing cost basis records that will matter at tax time. Finding them now is better than finding them in a crisis.

Cybersecurity Foundations

Family offices are attractive targets precisely because they concentrate significant wealth with lean staffing and, often, informal security practices inherited from the founder's personal habits. The cybersecurity foundation should be laid in the first 30 days, not deferred.

Two tools are non-negotiable from day one. A password manager is software that generates, stores, and fills in strong, unique passwords for every account — eliminating the practice of reusing passwords across systems. Multi-factor authentication (MFA) requires a second form of verification beyond a password before granting access to a system; most banks and software platforms now support or require it.

Families commonly extend these practices to every person with access to family office systems — employees, accountants, and any outside advisors who log into shared platforms. A written incident response plan — a documented procedure for what to do if a breach or fraud attempt occurs — should also be drafted early, even if it is only a page long. It is far easier to follow a plan in a crisis than to invent one.

Reporting Software and the First Net-Worth Statement

Selecting reporting software is one of the most consequential early technology decisions a family office makes. Family office technology platforms aggregate data from custodians, banks, alternative investment funds, and privately held assets to produce a single, unified view of the family's financial position. A fuller breakdown of software categories appears in Family Office Software, Category by Category.

The first deliverable that most families target is a consolidated net-worth statement — a single document that lists every asset and liability the family holds, regardless of which entity owns it or which institution holds it. This is sometimes called a net-worth statement or personal financial statement. It is the family office's version of an opening balance sheet, and it establishes the baseline against which all future performance will be measured.

Producing the first consolidated statement often takes longer than expected because data from private investments, real estate, and closely held businesses must be entered manually or sourced from documents collected in the prior step. Building this discipline early, however, means that every subsequent statement becomes faster and more accurate. The broader practice of ongoing consolidated reporting is covered in Consolidated Reporting: One True Net Worth.

Advisor Introductions and the First Family Meeting

A family office rarely operates in isolation. Attorneys, CPAs, investment managers, insurance brokers, and banking relationships all exist before the office opens — but they have typically been managed by the principal personally, without coordination. One of the most valuable early moves is to gather these advisors, introduce them to the family office team, and establish clear communication protocols for who speaks to whom and about what.

Families commonly hold a structured introductory meeting — sometimes called an advisor summit — within the first 60 days. The agenda typically covers the office's purpose and priorities, information-sharing expectations, the annual planning calendar, and any immediate projects such as an estate plan review or a pending tax filing. When advisors understand the office's structure and who their primary contact is, duplicate work drops and important details stop falling through the cracks.

The first formal family meeting follows naturally, often near the end of the 90-day window. This is not a social gathering — it is a governance event. Common agenda items include presenting the first consolidated net-worth statement, reviewing the family's stated purpose for the office (as defined during the planning process described in Step 1: Define the Family Office's Purpose), and agreeing on a cadence for future meetings. Families with multiple generations often use this meeting to begin the conversations that eventually shape a family governance framework — the rules and structures that guide collective decision-making over time.

The first family meeting sets a tone. Families who approach it as a formal operating review — with an agenda, prepared materials, and clear action items — tend to build more durable governance habits than those who treat it as an informational briefing.

Readers looking for a practical checklist to track progress through each of these steps can find one at the Family Office Launch Checklist.

Legal entity choices, tax registrations, and regulatory filings touch nearly every step described here. Qualified attorneys and CPAs should be engaged before the office opens accounts or signs agreements — not after.