商品房预售合同签订后应及时向房地产登记机构办理商品房预售合同登记备案，以便保护合同双方当事人权益。
Signed presale Contract of commodity housing shall be timely registered and put on records at relevant real estate registration organ to protect the rights and interests of both parties.
商品房预售合同在订立生效后，由于各种原因，可能发生当事人预售合同权利和义务的转移，即一方甚至是双方当事人的变更。
After a future commercial apartment contract goes into effect, for various reasons there could be changes to the rights and obligation of the parties involved.
预购人订立预售合同后取得对商品房的期待权。
Reselling made to obtain a contract to sell the house look right.
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