About Us

country road

Our Guiding Principles

  • Communication: We build and maintain long-term relationships with select clients, respecting their unique values and goals.  We coordinate efforts with other professionals to provide a comprehensive, team approach to servicing financial needs.
  • Simplicity: The best answer to a personal financial question is usually simple- -sometimes obvious.  It’s the emotion that surrounds an answer which can be complex and demanding.  We work with our clients to help them address the real financial issues- -with a rational eye–and to avoid all the distracting and sometimes paralyzing “noise”.
  • Low Cost: We keep planning and investment costs low. This includes our fees, mutual fund expense ratios, and commissions, as well as ordinary income and capital gains taxes.  Emphasis on low cost index funds and passive strategies is a key to planning success.
  • Transparency: We will not buy an investment for ourselves or a client that is not fully “understood”.   
  • Ethics and Objectivity: We hold ourselves to the highest standards of honesty and integrity and provide clarity and unbiased advice tailored to our clients’ goals .  We never receive compensation from 3rd parties.

Teamwork is intrinsic to our approach to financial planning. 
Beginning with our very first meeting, you will benefit from a team that applies many years of collective financial experience to the serious business of managing your investments.

Our People

Mimmy Cooper


Mimmy Cooper

Mimmy started in the financial services business in 1976 as a computer programmer with John Hancock. She went on to run a business line for Interactive Data Corp. (IDC) before moving to the Boston Company and then PanAgora Asset Management in senior Client Services roles.  In 1991 she moved to Independence Investments, where she ran the Client Service Department and ultimately served as Chief Operating Officer and a member of the Board of Directors from 2000 to 2009.  Mimmy completed her MBA at Boston College in 1983 and her Series 65 Investment Adviser License in 2009. She also completed a certification program in financial planning at Boston University in 2010.   She serves on the New England Board of the American Technion Society.

What you might not know about Mimmy: She has an adventurous side that has taken her zip-lining in Costa Rica, heli-hiking in the Canadian Rockies and snorkeling in the Virgin Islands.

Mark Lapman

Mark started in the financial services industry as a stock analyst in the Portfolio Management Department of John Hancock in 1979.  He was a member of the team which started Independence Investments in 1982 and went on to manage marketing, fixed income and compliance. Ultimately, he served as Chief Executive Officer and Chairman of the Board and the Investment Committee from 2000 to 2009.  Mark received a Ph.D. in History from Harvard University in 1982 and holds a CFA designation from the CFA Institute.  He is on the Board of Directors and Investment Committee of the Whitehead Institute for Biomedical Research.

What you might not know about Mark:  One of his fondest parenting experiences involved breeding 25 zebra finches with his three children. Then, he painstakingly built a new cage for the birds, but it was too large to get out of his basement and had to be dismantled. Learned his lesson on good planning at an early stage!

Mark Lapman


Lauren Ledger


Lauren Ledger

Lauren started in the financial services industry in 2001, serving in Relationship Management roles with Independence Investments, LLC.  In 2014 she co-founded a 501c3 non-profit organization that ensures that children who receive Federal free and reduced price lunch benefits, still have enough to eat when school isn’t in session. She remains on the Board of Arlington EATS.   Lauren joined Cooper Lapman Financial, LLC in 2016.  She completed her MBA at Boston University in 2005 and her Series 65 Investment Adviser License in 2016.  She was awarded the CERTIFIED FINANCIAL PLANNER™ certification in 2020.

What you might not know about Lauren: Lauren is originally from Nebraska and has lived in both China and Japan as well as various US cities.  Her oldest son was born in Shanghai.

Trey Tremblay

Trey started in the financial services industry in 2016. He has worked in the investment advisory business continuously, most recently at Morgan Stanley an​d RBC Wealth Management, where he gained exposure and real hands-on experience in the business. Trey joined Cooper Lapman Financial, LLC in 2021. He completed his BS at Providence College in 2016 and his Series 7 and 66 licenses in 2016. He received the CERTIFIED FINANCIAL PLANNER™ certification in 2019.

What you might not know about Trey: Trey enjoys spending time at his family’s lake house in Massachusetts. When he is not at the lake, he can be found at the hockey rink, golf course, ski mountain, or traveling in exotic areas.​

Trey Tremblay





We are excited to join our friends and colleagues at The Colony Group! Together, we are a stronger team with complementary capabilities to help our clients find meaning and joy in their lives. Our personal relationships with our clients will remain the foundation and future of our firm - Welcome to our new home!


This will close in 0 seconds