Section 5A-402
If a conservator has been appointed in another state and a petition for a protective order is not pending in the commonwealth, the conservator appointed in the other state, after giving notice to the appointing court of an intent to register, may register the protective order in the commonwealth by filing, as a foreign judgment in a court of the commonwealth, in a division of the probate and family court in which property belonging to the protected person is located, certified copies of the order and letters of office and of any bond.