Get professional notarial and legal support from our notary service. Our highly trained agents provide signed documents to clients in the Bronx, NY.Bronx, NY 10463. Riverdale. NOTARY Phone: The Bronx County Clerk's Office maintains an index of all Notary Publics and Commissioner of Deeds qualified in Bronx County. Services include witnessing the signing of important documents, taking affidavits and depositions and giving oaths. Form must be filled out and notarized at the time of filing. County Clerk Mailing Addresses. Our real estate attorneys are experts at helping New Yorkers transfer deeds in Manhattan, Brooklyn, Queens, the Bronx, and Staten Island.