Review your credit report a few months before you begin your house hunt, and you'll have time to ensure the facts are correct, and be able to dispute mistakes before a mortgage lender checks your credit. Get a copy of your credit report from Experian, Equifax, and TransUnion. Why all three? Because, if the scores differ, the bank will typically use the lowest one. Alert the credit bureaus if you see any mistakes, fix any problems you discover, and don’t apply for any new credit until after your home loan closes.
Before getting serious about your hunt for a new house, you’ll want to choose a lender and get pre-approved for a mortgage (not just pre-qualified—which is a cursory review of your finances—but pre-approved for a loan of a specific amount). Pre-approval lets sellers know you're serious. Most importantly, pre-approval will help you determine exactly how much you can comfortably afford to spend.
Once you decide to sell your house, it's time to strip out the emotion and look at it as a commodity in a business transaction. If you start reminiscing about all the good times you had and the hard work you invested, it will only make it that much harder to successfully price, prepare, and market the home.