John is the founder principal of John Dean Law Office. He is a member of the New Zealand Law Society, and its Wellington Branch, International Bar Association and Wellington Regional Chamber of Commerce. He is interested in all sports, and participates in cricket, golf, fishing and tennis. John also has an active interest in the Arts, especially theatre and music. He has served as Chairman of Wellington Regional Orchestra and President of Wellington Repertory Theatre of which he is a life member.
John for some 20 years was an active Rotarian. His involvement in Rotary has been varied and busy, including Past President of Wellington Harbour City Rotary, club services director, HCR Weekly Editor; and more recently treasurer and webmaster. He led a Group Study Exchange team to Lancashire and the Lake District. For many years he was Secretary of the New Zealand International Fellowship of Cricket Loving Rotarians. He has been Chairman of the International Fellowship of Cricket Loving Rotarians, and NZIFCR. He is a double Paul Harris Fellow.