N.D. Cent. Code § 30.1-18-21
After notice to all interested persons, or on petition of an interested person, or on appropriate motion if administration is supervised, the propriety of employment of any person by a personal representative, including any attorney, auditor, investment adviser, or other specialized agent or assistant, the reasonableness of the compensation of any person so employed, or the reasonableness of the compensation determined by the personal representative for that person's own services, including services rendered as attorney, may be reviewed by the court. If the amount of attorney's fees is based upon the value of the decedent's estate, the fee agreement must be in writing and mailed to all parties who are heirs of the estate pursuant to the last will and testament of the decedent. If the decedent died intestate, notice must be provided to all heirs of the estate in accordance with chapter 30.1-03. Any person who has received excessive compensation from an estate for services rendered may be ordered to make appropriate refunds.
N.D.C.C. § 30.1-18-21