Maredin Wealth Advisors
Practice Notes · August 2026

What "Fiduciary" Actually Means and What It Doesn't

By Marcelo Zinn · 6 min read

Ask any firm in this industry whether it is a fiduciary. The answer will be yes. Nearly every firm says it now, which is exactly why the word needs testing. The standard has real content. The claim can be checked. Here is what the duty requires, when it can switch off, and the three questions that test it in writing.

We take the word seriously. We also think it gets tested too rarely. The documents that check the claim are public, the questions are short, and you do not need a law degree to ask them.

The standard: two duties

A fiduciary owes you two things. The duty of loyalty and the duty of care. That is the whole framework.

Loyalty means your interest comes ahead of the firm's. Conflicts have to be eliminated or fully disclosed. Not buried in a footnote and technically available. Disclosed in a way that lets you give informed consent.

Care means the advice has to fit you. Your objectives, your risk tolerance, your full financial picture. It requires a reasonable basis for each recommendation and ongoing attention to the account. Not a one-time sale.

Both duties. All the time. That is what the word means when it means something.

The part that gets skipped: the standard can switch off

Here is the question to actually ask. Can the same person be a fiduciary at 10 a.m. and something else at 2 p.m.? Yes. That is how dual registration works.

Many financial professionals hold two registrations at once. Investment adviser representative on one side. Broker-dealer representative on the other. In the advisory role, the fiduciary standard applies. In the brokerage role, a different standard applies. Same person. Same desk. Sometimes the same conversation.

This is legal. It is disclosed. But the disclosure lives in documents most people never open, and nobody announces the switch mid-meeting. So "we are a fiduciary" can be completely true and still incomplete. The question is not whether the duty exists. The question is when.

The three-question test

You do not need to learn securities regulation. You need three answers, in writing. Email works. So does a printed reply. What matters is that the answers are on paper.

  1. Is your fiduciary duty continuous? Not "do you act in my best interest." Everyone says yes to that. Ask whether the duty applies to every account, every recommendation, every interaction, at all times. This is a yes-or-no question. Watch for a paragraph where a word should be.
  2. What is your total compensation, from every source? Advisory fees are the visible part. Ask about commissions, trails, revenue sharing, referral fees, and payments tied to specific funds or insurance products. The full list. A firm that knows its own economics can produce this quickly.
  3. What are your conflicts of interest? Every firm has some. Ours included. A firm that claims zero conflicts has failed the question. The useful answer names specific conflicts and explains how each one is managed.

Where the answers live

Every registered investment adviser must deliver a plain-English brochure called Form ADV Part 2A. It is a public document. You can request it before any meeting, and you can pull it yourself from the SEC's Investment Adviser Public Disclosure site.

Three places matter most. Item 5 covers fees and compensation. Item 10 covers other financial industry activities and affiliations, which is where dual registration and related businesses show up. Item 11 covers the firm's code of ethics and conflicts around client transactions and personal trading. The whole brochure is maybe fifteen minutes of reading. It is where the marketing stops and the disclosure starts.

Compare the written answers you received against the brochure. They should match. If they do not, you have learned something important at zero cost.

What the standard does not do

Now the correction. A fiduciary standard governs conduct. It does not govern outcomes. People hear "fiduciary" and file it under "guarantee." That's backward.

The standard does not mean the advice will turn out right. It does not mean a portfolio will perform. It is not a credential and it is not a skills test. Registration does not imply a certain level of skill or training. Every registered adviser is required to tell you that, and it is true.

What the standard does is narrower and still valuable. It removes one specific category of problem: advice shaped by the adviser's own compensation. Careful, loyal, well-documented advice can still be wrong. The duty means it cannot be self-interested. That is the whole claim. Nothing more.

Independence is a separate question

Fiduciary and independent get used as one idea. They are two.

A fiduciary inside a large institution can owe you the full duty and still work from that institution's product shelf. The duty is real. The menu is limited. An independent firm works from an open menu and carries its own trade-offs, including reliance on outside custodians and outside research.

Neither structure wins automatically. They are different constraints. You are owed clarity on which one you are looking at, and Item 10 of the brochure is where you find it.

Bottom Line

"Fiduciary" is a testable claim, not a slogan. Ask the three questions in writing. Is the duty continuous. What is the total compensation, from every source. What are the conflicts. Then read Form ADV Part 2A, starting with Item 5.

The standard is about conduct. It tells you how a firm is obligated to behave, not how your investments will behave. Keep those two things separate and the word starts carrying information again.

A firm that answers the three questions directly is telling you something. A firm that changes the subject is telling you more.


This page is for informational purposes only. It is not an offer to sell or a solicitation of an offer to buy any security, and it is not personalized investment, tax, or legal advice. Maredin Wealth Advisors is an investment adviser registered with the Florida Office of Financial Regulation. Registration does not imply a certain level of skill or training. Advisory services are offered only to clients or prospective clients where Maredin and its representatives are properly licensed or exempt from licensure. Please consult your own advisor regarding decisions specific to your circumstances.