Client Service Unit is responsible for the opening and closing of demand deposit accounts within the account management system, as well as account lifecycle management, including timely billing and invoicing, client inquiries, check processing support, ACH-related processes, and end-to-end payment investigations. Ensure proper and timely handling of check payments and deposits, including check deposits, inclearing items, returned checks, exception handling, suspense items, reconciliation follow-up, and client inquiries related to check processing.