Fee-only adviser · Bar Harbor, ME
Coston, McIsaac & Shea Financial Advisors
Coston, McIsaac & Shea Financial Advisors is a fee-only investment adviser registered with the U.S. Securities and Exchange Commission, with its main office in Bar Harbor, Maine. On its latest Form ADV, filed May 21, 2026, it reports $467M in regulatory assets under management, 1,254 individual clients and 11 employees who give investment advice. It reports no commission compensation, is not registered as a broker-dealer and does not act as an insurance agent.
Key facts from Form ADV
| Registration | SEC-registered |
|---|---|
| Firm CRD number | 194515 · SEC file 801-96330 |
| Office | 38 Rodick Street-Suite B Bar Harbor, ME 04609 |
| Phone | (207) 288-4747 |
| Website | www.costonshea.com |
| Regulatory assets under management | $467M |
| Individual clients | 1,019 non-high-net-worth, 235 high-net-worth |
| Financial planning clients | 0 |
| How it charges | Percentage of assets, Fixed fee |
| Services | Portfolio management, Selection of other advisers |
| Employees | 12 |
| Disciplinary disclosures | None reported |
| Latest Form ADV filing | May 21, 2026 |
Source: the firm’s Form ADV Part 1A as published by the SEC’s Investment Adviser Public Disclosure database, data as of November 6, 2026. Figures are self-reported by the firm.
What this means for you
- It offers hourly or fixed-fee arrangements, so you may be able to pay for a plan without handing over your investments.
- It also charges a percentage of assets managed for ongoing investment management.
- Most of its individual clients are not high-net-worth, so it is likely to work with people who are still building assets.
- It reports no disciplinary history on Form ADV.
Before you hire any adviser
Read the firm’s Form ADV Part 2 brochure on its SEC record: it sets out fees, minimums, conflicts of interest and who will manage your money. Ask whether the firm acts as a fiduciary for all of your accounts, how it is paid in total, and who holds your assets. Our guide to choosing a financial adviser lists the questions to ask.
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