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Our Team

Our Team

The Estate Planning & Asset Protection Law Center of Dennis Sullivan & Associates

Is comprised of Attorney and CPA Estate and Asset Protection Planning Professionals who have many years of proven experience and commitment to helping clients. The firm has even developed an Unique Self-Guided 19-Point Trust, Estate, Asset Protection and charitable Planning Legal Guide to help families review their planning to make sure it continues to meet their goals and objectives. Drawing from their experience, the firm has also developed a proprietary Estate Planning Program called “Lifetime Protection Program.” This program takes into account a client’s unique values, circumstances and goals, and designs customized strategies to achieve significant results, such as avoiding probate; reducing income, estate/gift and other taxes; protecting assets; preserving and increasing wealth; providing for charitable cases that are important to them and provide for themselves when they want, the way they want. Through our unique process we are able to communicate opportunities that people have to enhance their experience and create value for them, their families and their communities in which they live.

Dennis B. Sullivan, Esq., LLM, CPA

Dennis B. Sullivan has over 30 years of service to individuals, families, businesses and non-profit organizations. He was a 15 year member of the AARP Legal Services Network, National Academy of Elder Law Attorneys, WealthCounsel, Elder Counsel, and the Massachusetts Society of CPA’s. He earned a Masters in Business Administration from the MIT’s Sloan School of Business, a Master of Laws in Taxation from Boston University School of Law, a J.D., cum laude, from Suffolk University Law School and a B.S., summa cum laude, from Suffolk University.

Mr. Sullivan has written seven books on Estate, Elder Law, Asset Protection and Wealth Strategies Planning including:

Generations: Planning Your Legacy
Legacy: Plan, Protect and Preserve Your Estate
Living and Learning: Achieve Retirement and Income Security
Estate Planning Strategies: Collective Wisdom. Proven Techniques.
The Trustee Manual: A Family Trustee Resource
Senior & Boomers Guide to Health Care Reform & Avoiding Nursing Home Poverty
The Ten Biggest Estate & Asset Protection Planning Mistakes People Make and How to Avoid them.

The newest book even includes a special bonus chapter: The Biggest Long Term Planning Oversights and Opportunities for Quality Care
He has authored several articles on the tax savings, asset protection, estate planning, Business planning, charitable & educational planning and benefits of proactive planning, some of which have been published in Lawyer’s Weekly, Boston Business Journal, and community newspapers. He also has provided continuing professional education courses for professional, business, and non-profit audiences. He and the committed and compassionate professionals at the Estate Planning and Asset Protection Law Center of Dennis Sullivan and Associates are committed to helping people and their families discover how to protect their home, spouse, family and life savings, while creating a lasting legacy for their families, communities and generations to come.

To contact the firm, please email

Greta A. Atchinson, Esq:

Greta A. Atchinson graduated from the University of Maine School of Law in 2009 and was admitted to practice law in Massachusetts in November 2009. Attorney Atchinson dedicates her practice to helping families who are worried about losing their home and other assets to rising medical and nursing home costs, taxes, as well as the costs and time delays of the probate court process.

Attorney Atchinson gives presentations on varied subjects including, estate planning, tax reform and how it affects your family and planned giving.

In addition to her legal work, Greta also serves on the Board of Governors for the Westover School in Middlebury, CT where she is also chair of the annual fund. In her spare time Greta enjoys reading, cooking, hiking with her Beagle and speaking Russian.

What Our Clients Experience

  • C.C. Dedham, MA

    My daughter was acquainted with Greta Atchinson, so when I had a need I naturally went to them. Both Greta and Dennis Sullivan have treated me wonderfully well! I’ve been very satisfied with the trust they did for me. Greta and Dennis were polite, caring and compassionate. They were very well prepared and helpful. I never felt rushed. I knew I needed to do something but didn’t know what. It was a great decision to go there. They were of tremendous help! Plus as a member of their Lifetime Protection Program I know they’re looking after me, plus whenever I have a question I can call them. I would absolutely recommend their services.

  • Mary McKernan, Needham, MA

    I’m extremely satisfied with the work that was done for my husband and me. Greta and the entire staff are always very helpful and nice. I’d initially found out about the Dennis Sullivan law firm when I was getting ready to retire and received a flyer from the state of Massachusetts that had various information on it. They are great people to know! We go in once a year now for a check-up that they provide. This keeps us very well informed about any developments, plus they answer all of my questions. The Sullivan group gets my highest recommendation!

  • C.B. Wellesley, MA

    We’re very pleased with the estate planning work that was done for us. My husband and I were very comfortable using their services. We originally went to one of their seminars, liked what we heard, and then came in for a consultation. I would definitely recommend going to see the people at Sullivan and Associates!

  • Mike McInerney, Framingham MA

    These people get things done! They got results in a number of different areas for me, such as estate planning, plus they’re still working with me and the state of Massachusetts in some matters involving my late wife. I first became acquainted with the Estate and Asset Protection Law Center of Dennis Sullivan & Associates a few years back. I’d seen an ad in the newspaper and went to one of Dennis’ free seminars, and then booked a consultation with him. He is very informative! Everyone there is very friendly, knowledgeable, and helpful. They are very accommodating people who get things well taken care of. I highly recommend their services!

  • J.S., Boston, MA

    I’m pleased to say they are my law firm! They’ve been very helpful to me over the years. I especially like the fact that they do a yearly check on all of my legal documents. This is a very viable service because things can change over time, and it’s good to know that I’m always current. This is very important, and I appreciate that they do this. These people do good work; they do things right!

  • H.S. Concord, MA

    Everything has gone fine. We first became familiar with the Sullivan Law Firm when we attended one of their seminars, and then made an appointment to come in for a consultation. We’ve been clients ever since. I appreciate that they continue to do a yearly review for us and advise us if we need to make any changes. As the saying goes, it’s good to have your ducks in a row! Everyone there has treated us wonderful. They are a very good group of people.

  • Noel Thyson, Winchester, MA

    I’m very satisfied with what the legal staff has done for me. Interestingly, an attorney I was using for another matter wound up recommending the Estate Planning and Asset Protection Law Center of Dennis Sullivan & Associates. I like the fact that they provide you with useful information, and quick answers. They treat you with dignity and respect. I highly recommend you go see them.

  • Matt DePalo, CPA., Natick

    The experience has been excellent. I am extremely satisfied with the Lifetime Protection Program.

  • I.C., Framingham

    The team at Dennis Sullivan & Associates is very helpful and knowledgeable. Everyone is pleasant and easy to do business with. I don't feel uncomfortable coming in. I interviewed four other attorneys...I'd rather come to you.

  • E.L., Lynn

    Thank you, Dennis, for your expert and caring assistance you have shown to me and my family. It was a trying and confusing process that needed a pro to guide us.

  • C.&J. K., Hopedale

    Thank you for all your hard work and dedication. We appreciate the promptness with which you handled our difficult situation.

  • B.S., Wayland

    We have told friends of our experience with Dennis Sullivan & Associates. We feel it has been very positive and beneficial.

  • Andy St. James, Holliston

    Dennis provided strong direction and guidance in developing and implementing a lifetime protection plan.

  • D.M. Framingham, MA

    We were very comfortable working with you and thank you for your patience in educating us about a process which frankly was quite foreign to us. We are pleased with the outcome and are pleased to recommend you to friends.

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