CORPORATIONS – insolvency – voluntary administration – receivers appointed concerning trust assets – sale of property and business – order under s 442C(2)(c) of the Corporations Act 2001 (Cth) for disposal by administrators of encumbered property – operation of s 441A on the mortgagee – relevance of enforcement action by a predecessor in title – application by mortgagee for leave to enforce mortgage – competing sale of land proposals – leave granted under s 440B(2)(b) for mortgagee to exercise power of sale – application to restrain mortgagee sale of land – sale of business – rival deed of company arrangement proposed – undertaking concerning employee entitlements – order sought under s 447A seeking modification to operation of s 440B – application to restrain mortgagee sale refused