If you need to apply for a mortgage loan, even if the green light is all the way, it will take about half a month at the earliest. I can help you calculate. The mortgage is evaluated first (about 1 ~ 2 days), the loan officer reviews the materials submitted by the borrower (1 ~ 2 days), and signs the loan contract (1 day) for superior approval (1 day). 2 ~ 3 days if you have acquaintances), so it takes 10 days to calculate. If it is easier for small and medium-sized banks or credit cooperatives to borrow money, it will be more difficult for the Big Four and the audit will be stricter.