Investors & landlords

The last renter moved out in 2017.

There was no income from the property in 2018 or 2019, hence we did not report it or complete a schedule E (as we had done all previous years).  Nor did we report/expense the cost of demolition incurred in 2018.

Per previous response, I am curious whether we have to "recapture" the depreciation  and how/where we can deduct the demolition expense ($15K).

Thanks for your time.