What should you do with your TSP


Passion Experience Diligence

How we’re different

We specialize in retirement planning for Federal Government employees. We understand the Thrift Savings Plan (TSP), Federal Employees Retirement System (FERS), Civil Service Retirement System (CSRS), Federal Employees Health Benefit (FEHB) program, Federal Long Term Care Insurance Program (FLTCIP), and Federal Employees’ Group Life Insurance (FEGLI).

We focus on long term relationships. We’re a boutique owner operated financial planning firm. We know all of our clients by name. You will work with the same CERTIFIED FINANCIAL PLANNER™ professional at every meeting.

We provide individual and customized investment management and advice to help you reach your retirement goals. We make recommendations and analyze financial products and insurance, we don’t sell them. This can save you time and money.

Sentinel Financial Planning, LLC was established to help you, the people who serve America. After working in the financial industry for 7 years Mark thought there had be a better way to help Federal Government workers with their retirement planning and investment needs. Mark launched the firm to provide a way for you to receive retirement planning advice even if you don’t have a large investment account to manage. We do this by charging a flat fee.


Get in touch

Finding the right financial planner is a choice not to be taken lightly. We invite you to schedule a free consultation to walk through your needs, the scope of your goals, and your budget.

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Mark Humphries.jpg


Mark is a husband, father, and CERTIFIED FINANCIAL PLANNER™ professional. He has worked in the financial industry since 2011. Prior to the financial industry he worked in the automotive industry and served in the U.S. Marine Corps.

Mark is a CERTIFIED FINANCIAL PLANNER™ professional located in Maryland. Through his personal and professional experiences he has learned how to help government employees and members of the military with their financial planning needs. Mark holds an undergraduate degree in Business Administration and has worked in the financial industry since 2011. While building a foundation in the industry Mark realized there was more he could do to serve clients. He earned a graduate degree in Personal Financial Planning. The coursework expanded the knowledge he needed to help clients and their families with tax, insurance, retirement, and estate planning and investment management.

Prior to entering the financial industry, Mark worked in the automotive field. It was at this stage in his life that he became interested in financial planning. Upon starting his first full-time job after the military, he was presented with the option to enroll into his employer’s 401(k) plan. Mark turned everywhere for help with understanding what he should do. However, no one was able to guide him. So, he began reading and researching everything he could find related to saving for retirement.

Prior to working in the financial and automotive industries, Mark was enlisted in the U.S. Marine Corps. During his enlistment, he became familiar with the challenges military service members and their families face. He also became aware of the resources and tools available to them in difficult times. While enlisted Mark was deployed for Operation Iraqi Freedom and witnessed firsthand the strains being separated from family can cause.

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M.S. Financial Planning

B.S. Business Administration