I agree more with Becky. There are many factors to take into consideration before making this decision. While a 4BR opens you up to a larger market, most 4BR buyers are going to want two baths. There may be other things you can do with the home to maximize value, and depending on what you owe, what the home could -reasonably bring, when you plan to put it on the market, etc., all of these things need to be adequately investigated. Call me anytime if you need help with real estate related questions: 785-925-3648. You do need a professional to help you with this one!