You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.

Certificate of Authentication

In many cases, documents need to be certified or authenticated after notarization. This is performed by the County Clerk where the notary is commissioned or has a Good Character card on file. The signature of the notary on the notarized document must be a perfect match with the signature on file with the County Clerk. If the signature on file does not match the notarized document, the document cannot be authenticated and must be redone.

New York Mobile Notary Service offers the fastest possible turnaround for documents which need to be authenticated. Documents notarized by us can be authenticated quickly at the New York County Clerk`s office.

We authenticate documents in the following New York Counties daily:

  • New York County
  • Queens County
  • Richmond County
  • Kings County
  • Bronx County
  • Nassau County
  • Westchester County
  • Rockland County

We can also authenticate documents in any New York or New Jersey county upon request.