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About

Our Primary Purpose

Over the course of a 26-year career on Wall Street, Michael Trethewey worked with hundreds of high-net-worth individuals and families at Merrill Lynch, Morgan Stanley, and Wells Fargo. He saw firsthand what comprehensive, thoughtful wealth management could do for a family’s financial future — and what gaps existed when planning was incomplete or generic.

He founded East Coast Capital Management to do something different: build a boutique practice with the resources of Wall Street and the personalized attention that only an independent firm can provide.

Our Primary Purpose

At ECCM, every client receives our undivided focus — from initial planning through execution, ongoing management, and long-term optimization. No one strategy fits everyone. We craft bespoke approaches for each client based on their specific goals, timeline, family situation, and financial picture.

We work in close collaboration with our clients’ external advisors — CPAs, estate attorneys, and other specialists — to ensure a holistic, coordinated approach where every element of your financial life works together seamlessly.

Why Florida Relocation

Having personally relocated from Massachusetts to Miami, Michael understands this transition from the inside — not just professionally, but personally. Florida offers extraordinary financial benefits for high-net-worth families: no state income tax, powerful homestead protection, and a favorable estate planning environment.

Client Centered

But the families who capture those benefits fully are the ones who plan carefully, act in the right sequence, and avoid the common mistakes that cost families six and seven figures.

That is why ECCM developed the 47-Point Florida Wealth & Residency Checklist — a comprehensive, phase-by-phase guide to making this transition correctly. It is the foundation of every Florida relocation engagement we undertake.

About Michael Trethewey

Michael Trethewey is the Founder and Managing Director of East Coast Capital Management, based in Miami, Florida.

With over 26 years of experience as a financial advisor — including 23 years as a Managing Director and Financial Advisor at Merrill Lynch and Morgan Stanley, followed by Wells Fargo Advisors — Michael has spent his career serving high-net-worth individuals, families, and members of the venture capital and entrepreneurial communities.

Our Primary Purpose

He has been recognized three times as a Forbes Top 1,000 Advisor, a distinction that reflects his commitment to excellence and his clients’ long-term success.

Michael holds a BS in Financial Management from St. Anselm College. He is affiliated with Prospera Financial Services, a full-service boutique wealth management firm and seven-time winner of Investment Advisor Magazine’s Broker-Dealer of the Year Award.

NMLS # 1278586

Knowledge is power.

Client Centered

Sound financial decisions require comprehensive knowledge, experienced guidance, and a trusted advisor who understands your complete picture. At ECCM, we are committed to providing our clients with both — along with the proactive planning that anticipates challenges before they become problems.

From investment management to retirement planning to Florida relocation strategy, we bring 26 years of Wall Street experience to every client engagement. We invite you to explore the resources on our website and reach out when you are ready to begin the conversation.