Form 8582 after conversion from Rental to Personal Property

What happens to form 8582, in Turbo Tax, years after property has been converted from rental property to personal property? Now selling that property and form 8582 is not on previous years return. Seems like when I stopped renting property it deleted Schedule E and form 8582. This is in TurboTax Premier. Guessing I missed a step in previous year but not sure where.