NJSA 2A:17-22. Oath of appraisers
The appraisers, before acting under their appointment, shall be severally sworn faithfully, honestly and impartially to appraise the property levied on, according to the true and intrinsic value thereof, without reference to what the same might be supposed to bring at a sale under the execution or process.
The oaths of the appraisers may be administered by the sheriff or other officer of the county or by any person authorized to administer oaths, and shall be indorsed on the appointment, and, with the appointment, shall be filed in the office of the county clerk of that county.