The Weekend Herald can reveal the model legally changed her name by deed poll to Tallulah Rose in August 2014. She opened bank accounts and became a director of companies in that name.
Tallulah Rose is listed as a director of Moonpie Ltd, a health food company which the Companies Office lists as struck off, and as a former director of Delivered Nutrition Ltd, another health food company which has been in liquidation since July last year.
Grant Bruce of Reynolds and Associates - the liquidators handling Delivered Nutrition - told the Weekend Herald he has been unable to contact Ms Nash to get to her to co-operate with proceedings.
Liquidation documents state Delivered Nutrition owes creditors $8556.04.
She had not responded to calls or emails, Mr Bruce said, and he did not know where she was.
Tenancy Tribunal judgments obtained by the Weekend Herald revealed that in the past three and a half years, Ms Nash had been ordered to repay former landlords more than $9000 in unpaid rent and utilities.
The landlords involved told the Weekend Herald that despite the orders, they had not been repaid.
Ms Nash lived at Sean Thomson's Birkenhead property for nearly a year and he said chasing her for bills was a constant issue.
Mr Thomson said he would receive rent payments from bank accounts under both Ms Nash's name and an account with the name T. Rose. But he had not known who T. Rose was.
As well as missing rent payments, Mr Thomson claimed Ms Nash did not pay a bond after signing the tenancy agreement for the property.
He said Ms Nash instead offered to give him an expensive handbag.
"I trusted her, so I said no, it's okay. How stupid of me."
Mr Thomson said he felt his good nature had been taken advantage of.
He said on April 2, 2015, he lodged a second tribunal action to evict Ms Nash for not paying her rent, and on April 14 she left the property.
The Tenancy Tribunal terminated Ms Nash's tenancy and ordered her to pay more than $5000 in unpaid rent and utilities.
She has not paid Mr Thomson any of that money, he said.
Another of Ms Nash's former landlords, who asked not to be named, said he too hadn't received a cent in the three years since the tribunal ruled in his favour against Ms Nash and Mr Kirby.
The Tenancy Tribunal ordered the pair to pay the landlord $4321 in November 2012, but the money was never paid, the landlord said.
Ms Nash, who was a regular fixture on Auckland's social scene, recently came clean about her battle with alcoholism.
A police representative confirmed a border alert had been issued under the name Sophia Nash, which would alert authorities if she returned to New Zealand.
Neither Police nor Customs would say whether there was a border alert out for the name Tallulah Rose.