The above forms are either local Nassau County Family Court forms or enhanced versions of official statewide forms for use in Family Court proceedings. A list of Filing Fees can be found HERE.Child Support Forms. (Purchase Agreement) will be filled in with the basic terms of the transaction. We'll make our choices, check the boxes and fill in the blanks. Fill out the form below! This guide will walk you through the paperwork for selling a house without a Realtor and various other steps that can give you a leg up.