"Pre-approval" means you have met with a loan officer, your credit files have been reviewed and the loan officer believes you can readily qualify for a given loan amount with one or more specific mortgage programs. Based on this information, the lender will provide a pre approval letter, which shows your borrowing power. Although not a final loan commitment, the pre approval letter can be shown to listing brokers when bidding on a home. It demonstrates your financial strength and shows that you have the ability to go through with a purchase. This information is important to owners since they do not want to accept an offer that is likely to fail because financing cannot be obtained.