She is not allowed to lock the other siblings out of the house. The house belongs to the estate and not her. If she wishes to remain in the house, she will have to pay rent to cover the insurance, property tax, insurance and maintenance. Once the executor has been appointed by the court, s/he can start unlawful detainer action against her to get her removed from the house.
Answered on Jun 11th, 2014 at 10:42 AM