Unless bond is expressly excused by the will or by the written waiver of all interested persons, the personal representative shall file a bond in the form set forth in Rule 6-312(a) if the estate is established to have a gross value of $10,000 or more after the payment of allowable funeral expenses, family allowances, fees due the register, and expenses of administration.

Cross reference: Code, Estates and Trusts Article, § 5-604(a).