Amsure – Crown Square Real Estate is one of Sydney’s leading independent real estate agencies based in the inner-city suburb of Waterloo. Amsure – Crown Square specialises in selling and leasing properties located in Sydney’s inner city and eastern suburbs, though we have also covered much of Sydney’s outer suburbs. The Amsure ‘family’ is led by Director and Licensee, Iris Leong, who takes a committed, hands-on approach to the running of her business and has a team of fully trained and committed sales, rental consultants and support staff.