Business Formations, Mergers & Acquisitions As General Counsel and senior management of major corporations, Mark S. Keegan has provided leadership and counsel to guide the operations, growth and compliance that affected thousands of employees and customers. The combination of legal and TQM training and experience has enabled Mr. Keegan to approach business growth and development and mergers and acquisitions from the perspective of effective planning and achieving the goals of the principals involved. From due diligence to compliance to the actual merger of the corporate cultures, Mr. Keegan's experience and fact-based, detailed processes ensure maximum client satisfaction.