From my understanding, the reason they were reduced so much was not only because of the 'stake in the company', but because for some absurd reason they decided to invest all of their properties into the company as well, hence why Queen Manor and Verdant were 'property of Queen Consolidated'. Also, Oliver wasn't quite broke.... he just only had millions instead of billions. But when you consider the cost of rebuilding the lair and funding the operations of Team Arrow, all without 'refilling the coffers' so to speak, and you get to broke status.
Now, I'm no businessman (obviously), but as I understood it, the reason for transferring the funds to Thea was because she was not someone who had been tied up with the company politics, like Moira and Oliver, and unlike them, had not invested anything into the company. Transferring the funds from them to an account in her name would have kept them from losing the funds they still had. Instead, their shares were devalued (though in this part, the lazy writing of Guggenheim and Co. forgot to explain to the layman watching the show HOW this is possible) by Rochev.
Now, I'm no businessman (obviously), but as I understood it, the reason for transferring the funds to Thea was because she was not someone who had been tied up with the company politics, like Moira and Oliver, and unlike them, had not invested anything into the company. Transferring the funds from them to an account in her name would have kept them from losing the funds they still had. Instead, their shares were devalued (though in this part, the lazy writing of Guggenheim and Co. forgot to explain to the layman watching the show HOW this is possible) by Rochev.
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