Home / Find a Property Professional / Caroline Martenstyn-Powis Caroline Martenstyn-Powis Background Member type Associate Areas of Expertise Valuation - Bank , Valuation - Construction , Valuation - Expert Witness , Valuation - Residential Post Nominal AAPI Areas of Service Brisbane and Moreton, QLD , Central Coast, NSW Certifications Certified Practising Valuer Contact Information Caroline Martenstyn-Powis Residential Valuer / Director Gold Coast Business Phone +61 2 9220 8500 Jones Lang LaSalle Advisory Services Pty Ltd