(1) When two or more persons are appointed copersonal representatives, the concurrence of all is required for all acts connected with the administration and distribution of the estate, except:
(a) Any copersonal representative may receive and receipt for property due the estate.
(b) When the concurrence of all cannot readily be obtained in the time reasonably available for emergency action.
(c) Where any others have delegated their power to act.
(d) Where the will provides otherwise.
(e) Where the court otherwise directs.
(2) Persons dealing with a copersonal representative who are actually unaware that another has been appointed to serve with the person are as fully protected as if the person with whom they dealt had been the sole personal representative.