Within ninety days after appointment, every conservator shall prepare and file with the appointing court a complete inventory of the estate of the protected person together with the conservator's oath or affirmation that it is complete and accurate so far as the conservator is informed. The conservator shall provide a copy to those identified in section 30.1-29-05.1. The conservator shall keep suitable records of the conservator's administration and exhibit the same on request of any interested person.