While serving with the police, he completed a Bachelor of Commerce in accounting and, later, an MBA, both at Otago University in the 1980s.
He developed one of New Zealand's first timeshare resorts in partnership with DFC, a government-owned merchant bank. Success led to further development and subsequently he acquired management of 70 per cent of New Zealand timeshare resorts post the 1987 share-market crash.
He has since acquired or developed a number of hotel interests as either owner or manager, including the Hotel St Moritz in Queenstown, the Heritage, Hamner Springs, and the Sofitel, Queenstown.
In 2011 he acquired management of Holiday Inn, Wellington subsequently rebranding it Rydges Wellington. He has also been involved in various hospitality properties in New Zealand and overseas including Vomo Island, Fiji, before selling in 2006.
In 2004, he and an associate purchased four retirement villages and subsequently in 2005 sold these villages and the Peninsula Club - a retirement village in Whangaparoa acquired a decade earlier - to Australian public entity Babcock & Brown.
Generus was set up in 2008 because Mr Wilkinson wanted to have his own company in order to focus on the luxury end of the retirement village sector.
He is the current president of the Retirement Villages Association.
He and his partner Liz have been based in Queenstown since they lost their house in Christchurch during the earthquake. They have two children, Chris (24) and Kate (22).
He travels regularly to Christchurch, Auckland and the Bay of Plenty and loves being in Tauranga because it gives him an opportunity to swim in the sea. He is also a keen tramper, climber and skier.
Graham Wilkinson:
* Role: Director, Generus Living Group
* Born: Wyndham, New Zealand
* Age: "Over 50"
* First job: Policeman
* Recently read: The Churchill Factor by Boris Johnson