To compel a trust accounting, you must have an interest in the Trust, serve a demand letter, and file a petition with the Surrogate's Court. The simplest way for beneficiaries to ensure the trustee is not abusing their authority or mishandling trust assets is to review trust accountings.The letter demands that Richard Quintero, as trustee of the Richard Lloyd Richardson Living Trust, provide a formal trust accounting. The PDF version of these forms are FILLABLE. They can be filled out electronically, then printed. The distinction is important for estate accounting purposes particularly where a trust is an estate beneficiary and therefore estate income is ultimately. Trustee Accountings. Compelling Accountings for a Trustee: A Trust beneficiary has the right to retain an Accounting Lawyer. I need a sample letter to request a formal accounting of an estate and of a trust that I am very confident the trustee. If beneficiaries refuse, the executor is free to file a Formal Accounting.