Siri, who is driving her automobile, is injured when another driver negligently causes an automobile accident. Siri hires a lawyer to represent her on a 35 percent contingency-fee basis. If the lawyer wins the case for Siri or settles the case with Siri's approval, he will earn 35 percent of whatever is collected from the defendant. If the lawyer does not win or settle the lawsuit, he gets paid nothing. The agent can recover this amount from the principal because of the duty to _______.
