Maybe they leveraged thier New York real estate to gamble on Wall Street and lost. They are definitely acting as though they have debts to pay. Also the fact that both the US and London headquarters are changing makes me think they leveraged the London property too.
After the KH money grab and the New York sales they should be flush. But these current Kingdom Hall consolidations and that fact that thier not even being discreet about makes me think thier still in the hole.