According to The Companies' Office, Owen's siblings became co-directors of his company, Thousand Words Ltd, two weeks after his death.
Court documents this week revealed that Barcelos Owen has taken legal action in the Auckland High Court against her husband's siblings.
Neither Barcelos Owen, nor her lawyer, Chris Baird, would comment when contacted by the Herald on Sunday. Heather and Stuart Owen, who are based in Western Australia, could not be contacted. Their lawyer, Tim Riley, said his clients were the executors of Owen's will. The legal action had been "in the court system for a while". No hearings had taken place yet, he said.