The new house mortgage developer has the obligation to help you get it done. After all, he wants to sell the house. But the core is whether you meet the conditions for bank loan approval. Generally speaking, as long as there is no bad credit record and financial resources, the approval of bank loans is not a big problem. The new house does not involve transfer. It is a normal business for developers to handle mortgage loans, and there is no charge unless you need other people's help for additional matters.