The real estate expectation right remains to be creditor's right. It originates from the effective real estate real right change contract. The effectivity of this contract is a prerequisite for the subsequent real right change. The confrontation of the real estate expectation right with the mortgage right arising between the real estate buyers and the creditors of money claims is essentially the sequencing of the two in the priority confrontation attributes. In the category of legal evaluation, the priority confrontation attribute of the real estate expectation right should be pre-positioned, enabling it to obstruct some priority owners. The "Implementation of Objection and Reconsideration Provisions" and some of the judgment documents give the real estate expectation right the efficacy of blocking the execution of money claims, and the enhancement of this obstruction should be based on the attributes of the real estate expectation right. We should increase the weights of the social public interest and the stability of real estate transactions.