217. Acts done in pursuance of revoked power.

Where an instrument in the prescribed form1 creates a power which is not a valid enduring power2 and the power is revoked by the donor's mental incapacity3, then, whether or not the instrument has been registered4:

  1.  

    (1)     an attorney who acts in pursuance of the power does not, by reason of the revocation, incur any liability either to the donor or to any other person5; and