Welcome! My goal is to do my very best to understand your situation and to provide a full and complete answer for you.
Good evening. The will should name an executor who will then need to be officially appointed by the probate
court as executor which will then give that person official authorization to administer the estate. Until that time, no one has any authority to do anything with your mother's assets. Even if the will names your sister as executor, the estate and his assets are not your sister's personal piggy bank. If she doesn't produce the will and cause it to be filed, you can file your own petition with the court asking the court to order it produced and filed. The court will then order your sister to produce it and if she does not, she will be held in contempt of court and subject to civil and/or criminal sanctions. Once administration begins, the executor has a fiduciary duty to each beneficiary and each beneficiary is entitled to a copy of the full inventory of assets and periodic accounting of every dime in and out of the estate. With regard to the house, prior to any sale to a related party, the executor is going to have to have the house appraised by an independent appraiser and no sale for less than that amount is going to be allowed. Even with the appraisal, if you object to the price, you can ask the court to prohibit the sale to the daughter. A typical estate, presuming no unusual complexity can be completed with 6-9 months of the date of death. If the executor fails to produce the inventory, periodic accounting, and/or fails to timely administer the estate, you can file to have the executor removed for breach of fiduciary duty. If there is any misappropriation of estate assets, you can also ask the court to award actual and punitive damages against the executor.
Thank you so much for allowing me to help you with your questions. I have done my best to provide information which will be helpful to you. If I have not fully addressed your questions or if you have any follow up questions, or if I have misinterpreted your questions in any way, please do not rate me yet, but simply ask a follow up question without rating so I can provide you with a fully satisfactory answer. If I have fully answered your question(s) to your satisfaction, I would appreciate you rating my service with 3, 4, or 5 faces/stars so I can receive credit for helping you today. I thank you in advance for taking the time to provide me a positive rating!