His lawyer, Jeremy Sutton, said: "My client doesn't want me to comment on this."
A man at the Botany Downs address where Peach is living said he knew Peach from working with him at an East Auckland food company.
The company's managing director confirmed he had been Peach's boss, but refused to comment further.
Court documents listed Peach's job as a property developer.
His Australia-based daughter Sascha-Maria Peach, 19, was shocked to learn her father had allegedly remarried.
She confirmed he and her mother, Tania, who is also based in Australia, had separated. "I just found out about it recently that they separated in the last few months."
Auckland University family law expert Pauline Tapp said under the Marriage Act, people must swear they are single when filling in a marriage licence application.