Is it legal that my brother and sister have shut me out regarding details of my mother's death?

Question Details: I am 60 years old and my mother just passed away. We were not in touch for 25 years or so. My sister and brother have frozen me out of any communication. I don't know who my mother's lawyer is although my stepfather was high up on the lawyer chain in their state. Is it legal for them to shut me out? she had a Will.

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