All ambassadors, ministers plenipotentiary, charges d'affaires, or other persons exercising public ministerial functions, duly appointed by the United States of America, shall have full power and authority to take all acknowledgments and proofs of any deeds, conveyances, settlements, mortgages, agreements powers of attorney, or other instruments under seal relating to real or personal estate, made or executed in any foreign country or state, by any person or persons, or by husband and wife, in the manner and according to the forms required by the laws of this commonwealth, and to administer all oaths or affirmations necessary or required for the purposes aforesaid; and that all acknowledgments and proofs heretofore made by any or either of the persons aforesaid, before any of the officers aforesaid, in the manner and according to the forms aforesaid, and hereby ratified and confirmed, and the same, and the records of the instruments aforesaid, if the said instruments have been heretofore recorded, are declared to be as valid and effectual as if the said acknowledgments, proofs and records had been respectively made, taken and recorded under the provisions hereof.