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Sean Murray Mcdonald

Advisor at Armadale Asset Management LLC — East Williston, NY

Updated today

Credentials

CFA®

Experience

2 years

Location

East Williston, NY

Armadale Asset Management LLC logo

Armadale Asset Management LLC

Independent

Total advisors

1

Clients per advisor

1 Low

Avg AUM per client

$819,421 High

HNW client ratio

100% Very High

About

Sean Mcdonald is a CFA® charterholder and the sole advisor at Armadale Asset Management LLC. He has 15 years of industry experience, including 13 years at Tweedy Browne, LLC, and has been with Armadale since 2023. Armadale Asset Management is an independent, single-advisor registered investment adviser that offers discretionary portfolio management and financial planning services to individuals, trusts, retirement accounts, business entities, and third-party advisers. The firm employs a bottom-up, fundamental valuation approach focused on small- and mid-cap U.S. equities, utilizing proprietary research and customized strategies including a dedicated REIT portfolio.

Client services

Based on Armadale Asset Management LLC

Financial planning Portfolio management

Expertise

Based on Armadale Asset Management LLC

Passive / index investing Real estate investing Active portfolio management Options & derivatives strategies

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Fee options

Percentage

$0 - $5,000,000: 1.00% annually $5,000,000+: 0.75% annually

Other

Account minimum: $1,000,000 for Armadale Small/Mid-Cap Strategy; $500,000 for general financial advice relationship (household minimum). Minimums may be waived or negotiated at adviser's discretion. Fee-only: 1% annually of AUM for other general financial advice; no commissions.

Location

East Williston, NY

East Williston NY

Advisors at this office

1

Most active in

California · New York

Work history

2 years of industry experience

Armadale Asset Management LLC

2023 - Present • 3 years

East Williston, NY

Unemployed

2022 - 2023 • 1 year

East Williston, NY

Tweedy Browne, LLC

2009 - 2022 • 13 years

Stamford, CT

Disclosures

Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.

Business activities & affiliations

David W

CFP®, ChFC®, Series 66

Great Neck, NY

The WealthPlan LLC

David Warshaw is a CFP® and ChFC® with 20 years of industry experience. He is the principal advisor at The WealthPlan LLC, an independent firm based in Great Neck, NY. Prior to founding The WealthPlan LLC and WealthPlan Risk Management LLC in 2020, he worked at Blueprint Wealth Alliance LLC and American Portfolios Financial Services, Inc. Warshaw is also a licensed insurance agent, focusing on life insurance, fixed annuities, and related products. The WealthPlan LLC provides discretionary portfolio management and financial planning services to individuals, high-net-worth clients, trusts, estates, and business entities. The firm manages approximately $73.8 million in assets and offers customized portfolio construction based on client goals, time horizons, and risk tolerance, incorporating a range of investment strategies and advising on held-away workplace accounts and digital asset custody.

Founder/Business Owner
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Kadri A

Series 65

Farmingdale, NY

Financial Gym Advisors

Kadri Augustin is a Series 65-licensed advisor with two years of industry experience, currently serving at Connective Wealth Partners, LLC. Prior to joining Connective Wealth Partners in 2025, Kadri worked at FG Advisory Services, LLC and The Financial Gym, Inc., among other roles. Kadri maintains a temporary dual registration with FG Advisory Services, LLC during the transition to Connective Wealth Partners. Connective Wealth Partners is an SEC-registered advisory firm that provides discretionary wealth management and financial planning services to individuals, high-net-worth clients, trusts, and estates. The firm’s investment approach is based on fundamental analysis with a long-term orientation, offering diversified portfolios that include ETFs, equities, bonds, mutual funds, and alternative investments.

Private / alternative investments
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Paul B

Series 63, Series 65, Series 66

Melville, NY

BIGGIN, INC.

Paul Biggin is the sole advisor at BIGGIN, INC., an independent firm based in Melville, NY. He holds Series 63, Series 65, and Series 66 designations and has four years of industry experience. He has been with BIGGIN, INC. since 2012. BIGGIN, INC. provides personalized investment management primarily to individual clients, including high-net-worth individuals, using both discretionary and non-discretionary portfolio management. The firm employs fundamental, technical, and cyclical analysis and utilizes a variety of strategies, including option writing, while coordinating with clients’ outside professionals as needed.

Options & derivatives strategies
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Syed H

Series 65

Rego Park, NY

Prudent Investment Advisors, Inc.

Syed Haque is a financial advisor at Prudent Investment Advisors, Inc. with 13 years of industry experience and a Series 65 credential. He has been a practicing CPA since 1989 and operates his accounting practice independently alongside his advisory role. Prudent Investment Advisors, Inc. is an independent firm managing approximately $7.4 million in discretionary assets for individuals, retirement accounts, and charitable organizations. The firm employs a combination of fundamental and technical analysis to manage a small, concentrated client base primarily on a discretionary basis.

Active portfolio management
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Sterling J

Series 66

Bronxville, NY

Barak Asset Management LLC

Sterling Jasper Jr. is a financial advisor at Barak Asset Management LLC with seven years of industry experience and a Series 66 credential. He previously worked at Merrill and has operated Sterling Advisory Services, LLC since 2009. Outside of finance, he is involved with Jersey Mike’s sub shops. Barak Asset Management serves a diverse client base including individuals, pension plans, and corporations, focusing on investment advisory and portfolio management. The firm uses a global-core asset allocation approach with ESG screening and emphasizes income through consistent dividends, tailoring portfolios to client objectives and restrictions.

ESG / Sustainable investing

Amir N

CFP®, EA

Huntington, NY

N Financial Plans

Hi, I’m Amir Noor—a fee-only financial advisor who specializes in helping high-net-worth clients navigate complex financial and tax planning. As a Certified Financial Planner™ (CFP®), an Enrolled Agent (EA), and Chartered Retirement Plan Specialist™ (CRPS™), I bring a varied lens to your finances: strategic, goal-oriented planning and expert-level tax guidance. I don’t accept commissions, product sales kickbacks, or referral fees—just clear, objective advice that puts your best interests first. My origin story begins on Long Island, where I was raised in an immigrant household defined by entrepreneurial highs and devastating lows. My father, a risk-taking entrepreneur, passed away while I was still in high school. Overnight, I found myself managing our family’s finances and hustling to support us—building websites and offering tech support to local businesses before I was old enough to vote. At 19, I got licensed as an insurance agent and began my journey in financial services. (No, I no longer sell products.) I started college as a computer science major but graduated from SUNY Stony Brook with a finance degree after realizing where I could have the greatest impact. My early entry into the field means I’ve now worked in financial services for nearly two decades—while still in my thirties. That experience spans a broad range of clients, from 22 to 70+, across professions like law, medicine, finance, and entrepreneurship. I’m fluent in their language and the challenges they face, from correcting mismanaged 401(k)s to addressing underinsured households to navigating unexpected windfalls and offshore asset transfers. Clients often tell me I “get it”—because I’ve lived it. I know what it’s like to be the first line of financial defense for your family or your business. And I know how overwhelming it can feel when you're not sure who to trust. That’s why I built my practice around transparency, technical expertise, and deep empathy. Today, I live in Huntington, Long Island, with my growing family. I continue to work closely with attorneys, medical professionals, and small business owners—helping them gain clarity, reduce risk, and build lasting wealth. Let’s talk. And if you have a great restaurant recommendation, we’ll get along just fine.

Tax strategies for small businesses Business ownership considerations General tax planning Founder/Business Owner Gen Y/Millennials (Born 1980-1995)
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