My dad passed 10/02/10 and my mom passed 2/1/11. They did have a will; my sister is the executor and fiduciary. She does have an attorney.

The attorney has corresponded w/ both of my sisters but has failed to include me in the correspondence. I did call him out on it. My sister has not been honest on the inventory, has not accounted for all checks she has written, and wrote checks after my parents death via POA. I have asked several times for access to the 2 storage units and a shed but my sisters refuse to let me know what is in them which the attorney is aware of. The final account has been filed but I pointed out misappropriated funds so the attorney asked for an extension to "fix" the errors. How do I file objections to the account and request to see all bank statements, copies of checks, receipts, etc?