Legal analysis: Only the purchase contract is the real estate that cannot be used for mortgage loan, and the most basic condition is that two certificates must be complete, namely, People's Republic of China (PRC) land use certificate, People's Republic of China (PRC) state-owned land use certificate and People's Republic of China (PRC) house ownership certificate.

Legal basis: Article 11 of the Interim Measures for the Administration of Personal Loans shall meet the following conditions:

(1) The borrower is a People's Republic of China (PRC) citizen with full capacity for civil conduct or an overseas natural person who meets the relevant provisions of the state;

(2) The purpose of the loan is clear and legal;

(3) The amount, duration and currency of the loan application are reasonable;

(4) The borrower has the willingness and ability to repay;

(5) The borrower's credit status is good and there is no significant bad credit record;

(6) Other conditions required by the lender.