Enter the date in the blank space provided. Place an "x" next to "hand-delivery" if you plan to serve your landlord or your landlord's directly. Place an "x" next to "mail, postage prepaid" if you plan to serve the form by mail. Fill in the address where you served your landlord or your landlord's attorney. Write the date, print, and sign your name in the boxes provided. Essentially, by signing the Certificate of Service, you are telling the court that you will serve a file-stamped copy on your landlord or your landlord's attorney.