John L. Sullivan, ESQ - Attorney at Law

Practice Areas


Attorney Sullivan has represented many clients in each of the Probate and Family Courts from Middlesex to Barnstable with a particular emphasis in the Plymouth Probate and Family Court.  He will guide you through each step of the process, providing advice from the intial contact through the resolution and conclusion of your divorce proceedings.   Attorney Sullivan recognizes the sensitivity of such matters and is always reachable to address your concerns.

Family Law

Attorney Sullivan is well versed in the laws of paternity and understands the goal of protecting the rights of each parent.   Attorney Sullivan can provide trusted and experienced assistance as your advocate.  For grandparents with concerns about visition rights, Attorney Sullivan has a great deal of experience with the Massachusetts law that protects your rights.  You can be assured that he will be there to assert them and help you maintain the special bond that exists between a grandparent and a grandchild.

Child Protection

Attorney Sullivan has been representing children, parents, grandparents and foster parents for over twenty-five years throughout the Juvenile and District courts in Massachusetts.  He has worked with the Department of Children and Families (DCF), and has been involved in a number of care and protection cases.  His advocacy can give you a voice in the protection of your rights, or that of your children.


The Juvenile Courts were established in Massachusetts in 1978.  Attorney Sullivan has represented a myriad of clients for both court-appointed and privately retained matters.  He has assisted juveniles in criminal matters, child in need of services cases, as well as care and protection cases.  He is a strong advocate of the rights of both the child and the parent.

Wills, Healthcare Proxies, Durable Power of Attorney

Attorney Sullivan can help you in the preparation of your will, as well as a durable power of attorney, healthcare proxy, along with a living will.  Each and every one of these documents are an integral component to the protection of you and your family for the uncertainties in the future.