The successor agent did not have the power to bind the principal to an arbitration agreement when there was no showing that the initial agent named in the power of attorney was “unwilling or unable to act” as attorney-in-fact for the principal, as required by the power of attorney.  Petersen v. Kindred Healthcare, Inc., 155 A.3d 641, 2017 PA Super 26 (2/1/2017).