Final answer:
Without specific literary context, it is difficult to determine exactly how the lawyer in question would inform the banker of his intentions to forfeit money. Typically, a lawyer might use direct communication, indirect behavior, a note, or a legal document to convey such intentions in a narrative.
Step-by-step explanation:
The original question seems to be related to a lawyer's actions in a narrative context, likely from a piece of literature, where the lawyer is involved in some financial dealings that have implications for a character called a banker. Without the context of the specific literary work, it is challenging to provide a detailed answer about how the lawyer informs the banker of his plan to forfeit money.
However, generally, in literature, a lawyer might do something like leaving a note, having a direct conversation, displaying behavior that signals intentions indirectly, or making the plan public through a legal document. These are common literary devices used to reveal a character's intentions in a narrative.
Additionally, if the lawyer and banker had business dealings, as suggested, the lawyer might have used a formal business communication method to inform the banker of the decision to forfeit the money. Understanding specific actions in this situation requires the actual text or context in which these characters are operating.