This article discusses various issues related to Business Law, including the validity of mortgage claims, appointment of directors, and actions that can be taken by ASIC against a person for making companies go into liquidation. It cites relevant sections of the Corporations Act 2001 (Cth) and landmark cases like Royal British Bank v Turquand and USSC v Hospital Products International Pty Ltd. The article provides a comprehensive analysis of the legal provisions and their application to the given scenarios.