Zong 'an (the fifth generation has five children: Cheng, Qing, Yuan and Ji)-Liang Ji (the sixth generation)-Liang Cong (the seventh generation)-Zhenming (the ninth generation, Taiping Town, luoding city)-Zhang Qian (the tenth generation)-Zhuanggao (the eleventh generation)-Xueda (the eleventh generation).
Is a purchase contract required to apply for a real estate certificate?