Investors & landlords

Thank you!  I have a very similar tax situation and this information was very helpful.  A difference in my situation is that my property had no rental activity since 2017 and in reviewing my TT tax returns I see that my PAL was reported properly until 2017 but in 2018 and 2019 the form was not filed due to no schedule E activity. Should the form have been generated in 2018 and 2019 even if it was only to show the 2017 PAL carry over amount? If so do you know how I should just file the form now for 2018 and 2019?  I see no reason to amend the prior years return since the PAL has no tax impact in 2018 or 2019.   I am reporting this PAL in 2020 now that the property has been sold.  Thank you!