I also had the same issue with disposing of an amortized lease fee on a rental property I just sold. I replied to the question about not being a 1245 item with "Yes", but never got any other questions about how to deal with the remaining amortized expense. When I delved into the TurboTax help screens it said to overide the current year amortization amount with the whole amount remaining. I did that in forms and it seems to work fine. The full amount showed up in schedule E under amortization.
