That depends first of all on whether it is supervised or independent administration. If it is indepedent, it does not need to be filed with the court, only send to the beneficiaries.
In any case, it should detail each asset, any income and all expenses along with a proposed distribution. Different counties have different guidelines or forms they request attorneys to follow, but this is rough. I'm talking about the final accounting along with the inventory.
A beneficiary certainly has a right to challenge or question items in the inventor or accounting and have a hearing on the matter. Good luck.