Weston Patrick, P.A.

A Professional Association Since 1897


Mark A

Mark A. Chapleau



Phone: (617) 742-9310

Direct Line: (781) 888-5323

Fax: (617) 742-5734

Description of Practice:

Tax-Advantaged Investments Practice

Mr. Chapleau’s Tax-Advantaged Investments Practice focuses on solving the legal issues confronting 529 and 529A ABLE Program managers, broker-dealers, investment advisors, administrators, and their state sponsors. Mark is the former President and General Counsel of one of the leading Section 529 program managers in the nation. Mr. Chapleau has provided legal advice on the securities, regulatory, and tax issues confronting 529 Plans for the last 15 years in connection with more than thirty-three (33) Section 529 and 529 ABLE Plans sponsored by twenty (20) states.

Mr. Chapleau has assisted program managers, state sponsors, primary distributors, broker-dealers, and investment managers in structuring 529 college savings and prepaid tuition programs and 529A ABLE programs in a manner that meets applicable securities and tax law requirements. For example, program management agreements and subcontracts for these programs need to be customized to comply with federal tax and securities statutes, relevant state statues, MSRB rules, and individual state program requirements, as well as to the applicable distribution channel (direct-sold or advisor-sold). Mark has extensive experience in guiding clients through the 529 regulatory maze, and in drafting the required contracts between the state sponsor and program managers, as well as between the program managers and third-party subcontractors, both for original programs and for modifications of those programs after successful re-bids. Mark also has extensive experience with the drafting and review of Section 529 and Section 529A offering documents and marketing materials.

Mr. Chapleau is a member of the College Savings Foundation and the College Savings Plan Network’s Legal & Regulatory Affairs Committees and speaks and writes extensively on college savings plan matters. Mr. Chapleau is a graduate of the University of Connecticut B.A. (1982) and Brooklyn Law School J.D. (1988).

Emerging Companies Practice

Mr. Chapleau’s Emerging Companies practice focuses on solving the legal issues facing entrepreneurs, startup companies, and other emerging growth companies, including negotiating the contracts with strategic partners and suppliers that are key to scaling early stage startups and growth companies. Mark is an experienced corporate and securities lawyer with a strong financial services, entrepreneurial, and business background.

Mark played a key role in the growth of Upromise Investments from a startup company to a leader in the 529 industry by building a legal department which supported more than 17 product launches over a six-year period. He led the company's continued growth as President following the founder's departure. As a former President and General Counsel, Mr. Chapleau understands the need for outside counsel to provide practical, results-oriented advice in real-time to help clients achieve their business objectives.


Mr. Chapleau is a graduate of the University of Connecticut B.A. (1982) and Brooklyn Law School J.D. (1988).


Massachusetts, Connecticut


Massachusetts Bar Association

Board Memberships:

Mr. Chapleau is a member of the Board of Directors of the Clearway School in Newton, MA. Clearway is a small, private, non-profit day school for students in grades 6-12 with language-based learning disabilities, nonverbal learning disabilities, dyslexia, and other similar special needs.

updated: 1 year ago

Each attorney in this association is an independent professional who is not responsible for the practice or liability of any other attorney in the association except for those directly employed by or practicing in partnership with that attorney.