Once the loan docs are signed, they are submitted to the processor for further review before being sent to the underwriter for approval. If everything is in order, you could have approval as quickly as 2 weeks. Most seem to require additional information that will need to be provided. Again, once the package is complete it is sent to underwriting to ensure all conditions have been met for final approval. Keep in mind, there are other divisions that are involved as well (i.e. insurance & title companies) that may effect the closing date. All in all the average process is usually 25-30 days.