Reasonable accommodations may be made to assist individuals with disabilities to perform these essential responsibilities for Accounts Receivable Specialist I: Prepare, review, and process customer invoices accurately and timely, verifying purchase orders, pricing, tax status, billing information, and required supporting documentation. Equipment Management Service and Repair - EMSAR, headquartered in Wilmington OH, is a fast-growing national technical services company providing maintenance, repair and installation services to OEMs in the Healthcare industry.