N.J. Stat. § 3B:16-6
The inventory of a personal representative which is to be filed, shall be proved by his oath that it is just and true, and by the oath of the appraisers, or one of them, that the real and personal property specified in the inventory was appraised at its just and true values according to their or his best judgment. If only one of the appraisers be sworn it shall be added that the other appraiser was present at the same time and consented to the valuation and appraisal. The oaths shall be taken before any person qualified to administer oaths in this State and shall be indorsed on the inventory filed with the surrogate or clerk of the Superior Court, as the case may be.
If personal property of the decedent shall have been set off for the benefit of the family, the executor or administrator shall also verify by his oath the list of property selected and file the list with the inventory.
N.J.S. § 3B:16-6