Open any business or trade journal and you will find news about the latest mergers, acquisitions, and divestitures across all industries. In a shifting marketplace, human resources and mobility professionals will need to handle the human and regulatory challenges of transition sooner or later. If the companies involved have expatriate employees, immigration compliance can add another layer of complexity. In this article, we examine seven key factors that HR and mobility professionals should consider when assisting a global expatriate population through a corporate transaction. This information will help business directors and HR personnel avoid unanticipated consequences and maintain immigration compliance for all employees.