All proceedings in probate courts relative to sales by a foreign executor, administrator, guardian, conservator or trustee shall be in the county where an authenticated copy of his appointment is first filed.
Mass. Gen. Laws ch. 204, § 7
Petitions for sales by foreign fiduciaries; venue
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.