Prepares and processes expense reports, reimbursements, and other required reports accurately and in a timely manner for the Chief Program Officer and Deputy Chief Program Officer, including processing purchase, invoice, vendor, travel, supply, and records-management documentation per Metro procedures. Ensures the Chief Program Officer and Deputy Chief Program Officer are fully prepared for all engagements by proactively gathering relevant background, anticipating questions or needs, and coordinating with internal partners to secure necessary materials.