You can return it. Need the assistance of the developer, check out at the same time, and change the deed tax and maintenance fund payer after finding the corresponding buyer.

Expansion: the down payment is the lowest proportion of down payment according to the national proportion when buying a house. Of course, the payment can be higher than this amount, but not lower than it, and the rest can be borrowed from the bank. Since June 1 day, 2006, the down payment ratio of individual housing mortgage loan shall not be less than 30%. Considering the housing needs of low-and middle-income people, the down payment ratio of 20% will still be implemented for those who buy self-occupied houses below 90 square meters.