(a) When a client has diminished capacity, the attorney shall, as far as reasonably possible, maintain a typical client-attorney relationship with the client.

(b) When the attorney reasonably believes that the client has diminished capacity, is at risk of substantial physical, financial, or other harm unless action is taken and cannot adequately act in the client's own interest, the attorney may take reasonably necessary protective action to address those risks.

(c) Information relating to the representation of a client with diminished capacity is protected by Rule 19-301.6 (1.6). When taking protective action pursuant to section (b) of this Rule, the attorney is impliedly authorized under Rule 19-301.6 (a) (1.6) to reveal information about the client, but only to the extent reasonably necessary to protect the client's interests.