Massachusetts General Laws Part III. Courts, Judicial Officers and Proceedings in Civil Cases (Ch. 211-262) Ch. 260, § 10

If a person entitled to bring or liable to any action before mentioned dies before the expiration of the time hereinbefore limited, or within thirty days after the expiration of said time, and the cause of action by law survives, the action may be commenced by the executor or administrator at any time within the period within which the deceased might have brought the action or within two years after his giving bond for the discharge of his trust and against the executor or administrator in accordance with the limitations provided by chapter one hundred and ninety-seven, relative to the limitation of actions against the executor or administrator by creditors of the deceased. If a person, liable to an action for death the payment of the judgment in which is required to be secured by chapter ninety, dies before the expiration of the time limited in section four, or within thirty days after the expiration of said time, the action may be commenced against the executor or administrator subject to the pertinent limitations in chapter one hundred and ninety-seven, relative to the limitation of actions against the executor or administrator by creditors of the deceased.

Notwithstanding the provisions of the preceding paragraph, any action pursuant to this section may be commenced by the executor or administrator within three years from the date when the executor or administrator knew, or in the exercise of reasonable diligence, should have known of the factual basis for a cause of action.