Toplace director Jean Nassif complained to the Sydney Morning Herald that he'd been unfairly targetted by "corrupt commissioners and ministers" after his building licences were cancelled and his daughter was separately charged with fraud.
"I have no sympathy for Jean Nassif or Toplace. None at all," Fair Trading Minister Victor Dominello said on Friday.
"I work very, very closely with the building commissioner and I know the position in relation to Toplace.
"I won't say anything further - I just hope the authorities get on top of this very fast."
Mr Nassif and Toplace won a temporary reprieve from NSW Fair Trading's licence cancellations when a tribunal in January stayed the orders until it had time to consider an appeal.
The cancellation, if upheld, will disqualify Mr Nassif from controlling a building corporation for 10 years.
His daughter Ashlyn Nassif, 27, was bailed on a $2.6 million surety on Wednesday after allegedly obtaining a $150m loan with a falsified pre-sale contract.
Nassif allegedly submitted sale contracts not bona fide to meet a $10.5m pre-sales condition for Toplace's Skyview Apartments in Sydney's northwest suburb Castle Hill.
Mr Nassif rose to national attention in 2019 when a viral video showed him gifting his yellow Lamborghini and asking her: "Mrs Nassif, you like?"
He was one of the key witnesses sought by an NSW upper house inquiry examining development activities in Sydney's northwest, but said he was unable to assist due to being in rural Lebanon.
He has not been accused of any wrongdoing in relation to the parliamentary investigation or the bank loan.
"None of it is true. Nothing. I never did anything wrong," he told the Sydney Morning Herald on Thursday evening.
"It is a lie, a fabrication of the police officers, they've been instructed by certain commissioners and certain ministers."
The developer, now apparently in the Philippines, said he would return home to Australia when he was well enough to travel, describing himself as "a very fair man".