The real estate market’s ‘presale’ practice in Taiwan is a distinct model. When preselling the residential houses, only the administration approved building permits, booklets containing associated building materials and equipment, blueprintsand building plan features are available. Along with the high amount of transaction value, the task of preselling residential houses is high. Therefore, the specialized “Housing Sales Agency” becomes prevalent. This study chooses “Housing Presales Agency” as research context and investigates an sales agent’s advertising strategy and its performance.