In Massachusetts, there is no certification for Mediators. However, there are requirements if you want your Mediation to be kept confidential. Massachusetts General Laws Chapter 233 Section 23C requires three elements for a Mediation to be confidential and privileged from discovery in a court proceeding.
First, you must enter into a written agreement with the Mediator. Second, the Mediator must have completed at least thirty (30) hours of training in mediation. Finally, the mediator must have at least four years of experience or be a member of a dispute resolution organization that has been in existence for at least three years, such as the Massachusetts Council on Family Mediation, Inc.
Attorney Justin Kelsey meets these standards and if you sign a written agreement to hire Attorney Kelsey as your mediator then all communications and work product of your mediation will be confidential pursuant to MGL ch. 233 §27C.