top of page
Meet Your Wealth Manager
PXL_20220419_163119858.PORTRAIT_3 (3).jpg



Marcus P. Miller, CFP®

Founder, Financial Planner

Teamwork, ethical conduct, and transparency. These core values drive every action I take with family, clients, and business.

Growing up near Tampa, Florida, I was raised by a hard-working single mother. I joined the US Navy at 18, earned a bachelor's degree in Finance, and served as a Financial Specialist, Disbursing Officer, and Financial Counselor in locations as broad as the Middle East, Europe, Australia, Washington, and Florida. I am honored to have served and grateful for the experience.

Today I serve as a financial planner, dedicating my hours to helping families plan for their biggest financial decisions. I put my years of education, experience as a financial counselor, and hundreds of hours of financial planning training to work. We help clients reduce taxes, invest smarter, and retire on their terms.


For our Navy clients, I put my experience as a senior PS to work (typically knowing more about military pay than their command).

I earned my B.S. in Finance from the University of Maryland and achieved the CFP marks in 2020. I am working on an MBA at the University of Florida.

I'm a proud member of the following professional organizations:

About Mainstay Capital

Mainstay Capital is dedicated to serving the community with honesty and transparency. Too much of the financial services industry is hidden fees, commissions, and shady kick-backs among the "professionals". This results in the practice of overcharging clients or downright dishonest communication in search of higher profits. We decided to do something about it.


Mainstay Capital is a fee-only financial planning firm that provides comprehensive wealth management services. In short, we advise on and manage your investments for a flat fee that is easily calculated on a handheld calculator. Some other firms may say they charge less, but they pack the fees into the price of their "wrap" products, making it impossible to calculate how much you're paying, and for what. They may sell you "products" that aren't in your best interest. We don't. That is the difference between fee-only and fee-based.

If our advisors determine you need a product like life insurance, annuities, or disability insurance, we search for the best options in the market. We don't take commissions or kickbacks. This removes the incentive to "sell". This is how the industry should be and is at Mainstay Capital.


We serve a fiduciary duty, meaning we are required to act in the best interest of our clients. We put our client's needs, wants, and interests above our own. Our clients pay a flat fee for the peace of mind that we have no incentive to steer them in the wrong direction.

Certified Financial Planner

As a firm policy, we employ CFP® qualified advisors who have made an oath to abide by a code of ethics as part of their designation. The Certified Financial Planner Board of Standards Inc. awards CFP® certification to individuals who meet the board’s requirements for professionalism in financial services.

To gain certification, a financial advisor must pass the 7 hour CFP® Certification Examination, have a minimum of three years of client facing experience, acquire the fundamental coursework in financial planning, and agree to abide by the CFP Board’s Code of Ethics and Professional Responsibility. Many consider this the Gold Standard in the Financial Advising community.


Live free of financial stress.

bottom of page