You need to get all of your documents together and get them to the lender. Yes, if you can verify what you told them, you should have an approval that you can close with. Once you have an executed purchase agreement, they can order title and appraisal. The actual underwriting could take as little as a few days to as much as a couple of weeks. It kind of depends on you and the lender as to how much you have your act together up front. The more thorough you are upfront, the less back and forth you have through underwriting. The reasons that a loan might not be approved are too long to list here. Assuming your LO knows what they are doing and you can verify your income and assets as given in the application, you should not have a problem. The one problem that you have no control over is the appraisal. If it comes back low, either the seller has to reduce the sales price or you have to pay the difference between the sales price and the appraised value in addition to your 3% investment. Congratulations and good luck.