In 1986 John began his real estate career as a sales and leasing agent specializing in Industrial and Investment properties with Colliers Tingey. And in 1998 John joined Fortune Associates, continuing to specialize in Office, Industrial and Investment properties.
After 30 years in the Central Valley, John joined Rossetti Company Commercial Real Estate in 2015 continuing to specialize in transactions along the Central Coast of California. In 2021 Rossetti Company merged with Colliers.