Under the Condominium Property Act, a corporation has several ways to serve documents (such as written notices or requests) on owners, including: Personal service on the owner. Ordinary mail or recorded mail to the owner’s address. For ordinary mail, service is effective 7 days after sending the document. For recorded mail, service is effective on the signing date of the acknowledgment of receipt. Electronic means to an electronic address as provided by the owner (e.g., e-mail). Service is effective 24 hours after sending the document.