About Us Collie & Tierney First National Real Estate In Mildura and the surrounding region, Collie & Tierney First National enter the twenty first century with a rare blend of local experience and the global knowledge required to succeed in the ever changing market place. Quiet achievers, we let others talk about being number one, yet Collie & Tierney lead regional sales in all real estate categories. But more importantly, we lead the way with customer satisfaction. The office has also actively adopted Best Practice which means the service given has a standard to be measured against. Licensed in both Victoria and New South Wales, Collie & Tierney offer you a team of over 30 dedicated staff with the diverse skills and specialist qualifications needed to assist you in all matters of residential, commercial and horticultural property. Property analysis, residential and commercial property management, land and building co-ordination, construction and management, and property investment.