Invitation letters are available to be picked up in the Center for International Programs and Services. Save the form to your local drive.Your invitation letter will be prepared on official AIS letterhead and a PDF will be emailed. Clearly state what you are inviting the recipient to do and why it is important. Application for a summons DC-430 File with a verified complaint to request the court to issue a summons if you do not have an attorney. Q. What is your mailing address? A. Suffolk County Department of Civil Service, PO Box 6100, Hauppauge, NY 11788-0099. How to write a complete meeting invite email?