This document discusses due diligence and company investigations for mergers and acquisitions (M&A). It defines due diligence as measures taken to gather and analyze information about a company's characteristics and risks before negotiating or deciding on a significant business transaction. The document outlines some key risk factors in M&A deals, including unique situations, conflicts of interest, and cognitive biases. It also describes the typical transaction process and parties involved in due diligence. Finally, it discusses how findings from due diligence can impact price negotiations, integration planning, and legal agreements.