sentences:  The debts in question had been secured on nine London properties, which had fallen in value by up to 50% since the start of the credit crunch, leaving them in negative equity.In August 2009 insolvency specialists MCR were appointed as liquidators of Buckingham Securities Holdings, Halabi's principal client advisory vehicle.By October 2009, Halabi's Anglo Swiss Holdings company began to liquidate assets including the attempted sale of Cambridge House in Piccadilly, in central London, previously the premises of the Naval and Military Club.