Del. Code tit. 18, § 7707

Any receiver, guardian, assignee, committee, trustee, executor, administrator or other fiduciary required by law or the order of any court to give a bond, undertaking or other obligation as such, who shall avail himself or herself of corporate suretyship in such bond, undertaking or obligation as authorized by the laws of this State, may present to the proper court or officer before whom he or she is required to account a statement and receipt showing the amount of charges paid for such corporate suretyship; and thereupon the court or other officer, before whom such accounting is rendered, may either order and direct such sum, either in whole or in part, to be a charge upon the estate and charged accordingly; or it may direct that no part thereof shall be a charge upon the estate. No charge for such suretyship shall in any case be allowed in excess of the sum or sums determined by any applicable rate filed by the surety with the Insurance Commissioner.