Executors are required to keep beneficiaries reasonably informed about the status of estate administration — a duty which generally includes accounting. For this reason, if an executor is doing their job, it usually won't be necessary for beneficiaries to request an estate accounting.
A waiver of accounting is a voluntary waiver by all heirs and beneficiaries that eliminates a very time-consuming and expensive accounting process by the Personal Representative. In order for a probate estate to be closed, the court requires the filing of a petition for final distribution.
§ 64.2-1314. Statement in lieu of settlement of accounts by personal representatives in certain circumstances. A. For the purposes of this section, the term "residuary beneficiary" shall not include the trustee of a trust that receives a residuary gift under a decedent's will.