Find an experienced lender.

Good lenders will be able to prequalify you with a minimal amount of information and without completing the entire application. The entire prequalification process should take no more than a few days. If it takes longer, it is probably indicative of the lender's inexperience and you may want to consider finding a new lender. In the end, you should complete the process with an excellent loan product and outstanding terms that are tailored to fit your needs.