We offer notary services free of charge to Deer Park residents. Out of district residents can receive notary services for a fee of $3 per signature.  The hours of our public notary vary, so please call the library ahead of time to confirm availability. 631-586-3000 option 4 for Adult Reference. If we do not have a notary available, our closest referral is the Office of Legislator Tom Donnelly, located at: 590 Nicolls Road, Suite 4Deer Park, NY 11729 9am-4pm Mon-Fri