But how could you secure that amount? So you need cash. You may need to invest in a promising new venture, so you would need significant figures. You could borrow from friends and family, but for...Not just a little. Online mortgage applications are quick. An online application form takes about four minutes of your time filling it up. Approval can then be given within 24 hours. This is a far cry from the several business days it usually takes for traditional mortgage applications to be approved. In this regard, online mortgages are less time-consuming and even initially paper-free.