However in his decision released today, Justice John Wild dismissed the appeal.
"Along with Ms Churchward, Ms Te Wini was involved in brutally murdering a defenceless old man in his bed in his own home at night. As counsel for Ms Te Wini rightly acknowledged, it was a 'dreadful' crime,'' he said.
In November 2008 Te Wini and Churchward climbed through Mr Row's window, went to his room and assaulted him using pieces of wood. They searched his home, found his wallet and ransacked the house to make it look like a burglary gone wrong.
Mr Rowe was found with a number of fractures to his skull, a broken cheek and nose as well as other injuries. The head injuries were the most probable cause of death.
Both girls were convicted of murder after a trial in November 2009 and sentenced to life imprisonment for a minimum period of 17 years.
However, Te Wini successfully appealed her conviction and a retrial was ordered. Four days before the retrial she pleaded guilty to an amended indictment of murder and in July 2012 was resentenced to life imprisonment with a minimum non-parole period of 10 years.
In a separate 2011 appeal, Churchward's minimum non-parole period was reduced from 17 to 13 years.