Quote from Maverickz:
So many times, in better housing markets than we are in now, I have seen people pay a mortgage on 2 houses for a year or more holding out for a certain price. What I personally would do to get the house sold fast is go ahead and take fair market value and subtract anywhere from 6mo to 1yr worth of mortgage payments and set that as a starting sell price. You are going to lose that money one way or the other, if you are willing to take the hit out of equity (lower selling price) you will likely be able to sell the house a lot faster and thus free up monthly cash flow for the new house.