When a document has been e-filed, it is served on all participating parties and marked FILED with the Nassau County Clerk's Office. A. Account Information.Mark the envelope "Personal and Confidential. Dear 2019 Spring Intern: There are 7 forms in this packet that must be completed, signed and emailed to. The declaration option does not require notarization; you need only fill in the blanks with the date and your location (city, state), and sign the declaration. The New York State Constitution and Public Officers Law require public officers, including elected officials, to take and file an oath of office.