NSW Fair Trading Minister Eleni Petinos has terminated the role of property services commissioner John Minns eight months into his two-year contract, saying the government will restructure the position her predecessor created late last year.

Mr Minns, appointed by former minister Kevin Anderson in November, left the role on Friday, making him the second figure in a key position of industry reform to depart within days, after the largely unexplained resignation of building commissioner David Chandler.