Australia's first celebrity doctor, Dr John Knight AM has spent decades amassing a residential property portfolio. John, also known as Dr James Wright, answered the nation’s medical queries in print, radio and as a regular guest on Midday with Ray Martin for 30 years. In 1973, John and his late wife Noreen established Medi-Aid Centre Foundation, a charity that provides accommodation for the elderly, particularly those who are frail, have no family support and no home. Now at 89, John has battled through heartbreak, personal and financial loss and cancer, but he’s kept buying property for Medi-Aid and now has almost 1,000 investments – including hundreds of Surfers Paradise waterfront apartments – that are rented out for a meagre sum. While John could afford to live in luxury, he chooses to live in the same un-renovated home where he raised his four children and has lived for the past 60 years.