Although there is one senior person giving me instructions on behalf of my corporate client, I am also receiving instructions on discrete aspects of the matter from several other employees of the corporation. Do I have to verify the identity of each of them?
You must use your judgment in this situation. If you are satisfied that an individual is responsible for the instructions you are receiving from others in the corporation it may be sufficient to verify his or her identity only. If, however, no instructing individual has overall responsibility for the instructions given by others, you must verify the identity of each person instructing you on behalf of the corporation.