Develop a Job description. Mergers and Acquisitions Manager evaluates an organization's opportunities for mergers, acquisitions, and divestitures and oversees M&A project management processes including due diligence, financial planning, scoping, closing, and integration. Coordinates research and analysis activities required to assess strategic. Due diligence in a broad sense refers to the level of judgement, care, prudence, determination, and activity that a person would reasonably be expected to do under particular circumstances. In corporate law, due diligence is the process of conducting an intensive investigation of a corporation as one of the first steps in a pending merger or.