Opening probate on an estate in Florida consists of expenses that can be placed into two categories: Attorney’s fees andCosts associated with the probate proceeding. Attorney’s fees are based on your agreement with your Florida probate attorney for the services he or she provides. Typically, attorney’s will bill at a flat rate, on an hourly basis, or on a contingent basis depending on the aspects of your case. With attorney’s fees, you will generally have a good estimate of exactly how much you will be paying after the Florida probate proceeding has commenced.