When an attorney-in-fact executes an instrument transferring an estate in real property, the attorney-in-fact shall subscribe the name of the principal to it and the attorney-in-fact's own name as attorney-in-fact.
Mont. Code Ann. § 70-20-108
Attorney-in-fact -- how to execute for principal
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.