Search is mainly to determine whether the property right of the property sold by the seller is clear and whether there is mortgage. In order to ensure the safety of the transaction, a search is needed before each second-hand house transaction. To protect privacy, : will search the books on behalf of others, without showing the owner&;s name. Zheng Dayuan, the person in charge of Dayuan mortgage, told reporters that to check other people&;s property, one must meet the following conditions: the standard place name, owner&;s name, registration number and real estate license number (real estate lic: house. At present, the urban property can support cross-regional search. In Yuexiu, Tianhe, Haizhu, Liwan, Baiyun and Huangpu districts, the property conditions in other districts can be found across regions, but only in the suburbs, but not in Conghua, Zengcheng, Huadu, Panyu and Nansha.