When my father passed away, I went to the law firm that wrote his will. I requested to see everything he had regarding my father's will. He responded to me Get a subpoena.

I attempted to obtain documentation from my father's attorney after he had passed.  The attorney stated to me that it is attorney client privileged information, and he didn't have to give it to me or any of my family.  After reading an attorney's responsibility regarding his clients will and one that is an heir has legal right to see this information.  What can be done? Only thing I want to see is documents in the attorney's file.  Due to the fact rumor has it that there is information in his procession that defined legally the documentation on how his estate was to be addressed.