A prequalification is an estimate of the size of mortgage loan you qualify for based on your previous financial history. A prequalification gives you an idea of how much home you can really afford and is a signal to real estate agents that you are a serious buyer. Furthermore, a prequalification can make the loan application process easier because each process requires you to provide similar information. In fact, the more information you can provide for your prequalification, the more precise your estimate will be. The best time to begin this process is before you begin searching for a home. To get started, find your nearest BankSouth Mortgage expert.