She has an obligation to look after the estate for the beneficiaries and comply with the will under the law. If she does not then you can seek orders.
If they are mismanaging the estate and losing money you have a right to challenge them.
You will need to get details as to what they are doing copies of probate etc and then get advise on the documents you have. if it is seen that they should distribute and are refusing you can take them to court and seek orders to distribute and seek they pay the costs for not complying with their obligations.
She does not have to listen to anyone. She is the one in charge but she has to comply with the will and collect assets and distribute them. She has to comply with the Will.
If she is not then you can take her to court and seek she is personally liable for any costs. Make sure all requests and in writing and you keep copies.
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