N.J. NOTARY OATH FILING Thursday, November 5th 3:00 to 6:30 p.m. The Mercer County Clerk’s office will administer the oath to newly commissioned and renewing Notaries. The cost is $15 and payment can be made via check, money order, Visa or MasterCard. No cash is accepted.  To schedule an appointment for you “Notary Oath” please call 609-989-6466 or email sortiz@mercercounty.org.  BY APPOINTMENT ONLY