N.J. Stat. § 47:1-2: Instruments to be in English to be entitled to recording or filing

No instrument in writing, with or without an acknowledgment, proof, affidavit or certificate attached thereto, required by law to be recorded or filed in the office of any county clerk or register of deeds and mortgages, shall be received for record or filing in any of such offices, unless such instrument, acknowledgment, proof, affidavit or certificate is written or printed in the English language.