Mass. Gen. Laws ch. 167D, § 19 (2026)

Section 19. No bank, federally-chartered bank or other corporation doing a banking business in the commonwealth, in this section called the depository, shall be required to recognize an adverse claim to a deposit standing on the depository's books to the credit of or to securities held for the account of any person, except by virtue of the service upon the depository of appropriate process issued by a court of competent jurisdiction in a suit or action to which such person, or the person's executors or administrators, has been made a party, unless the adverse claimant gives bond satisfactory to the depository and the adverse claimant to hold harmless and indemnify it from any liability, loss, damage, costs and expenses whatsoever on account of such adverse claim, or files with the depository an affidavit setting forth facts showing a reasonable cause for belief that a fiduciary relationship exists between such person and said adverse claimant and that such person is about to misappropriate the deposit or securities in question.