The time it takes to process a mortgage application can vary based on several factors. Generally, the processing time can range from a few weeks to a couple of months. Factors influencing the timeline include the completeness of the application, the type of loan being applied for, and the lender's current workload. NationStar Mortgage, like other lenders, aims to process applications as efficiently as possible. Applicants may also experience delays if additional documentation or information is required. To get a more accurate estimate specific to individual circumstances, interested parties should refer to NationStar Mortgage's official website for the latest guidelines and information regarding the application process. Staying in touch with the lender during the application can help provide updates on the status as well.