Your Passive Activity Losses are carried forward from year to year on Form 8582. https://www.irs.gov/forms-pubs/about-form-8582
Dispositions
Any passive activity losses
(but not credits) that haven’t been allowed (including current year losses)
generally are allowed in full in the tax year you dispose of your entire
interest in the passive (or former passive) activity. However, for the losses
to be allowed, you must dispose of your entire interest in the activity in a
transaction in which all realized gain or loss is recognized. Also, the person
acquiring the interest from you must not be related to you.
https://www.irs.gov/publications/p925#en_US_2017_publink1000104640
