Just to elaborate on @Anonymous_ 's response.
You need to save your tax return in PDF format. Save "EVERYTHING". Not just the forms required for filing, or the forms for your records.
In that PDF document you will find two IRS Form 4562's that pertain to that specific rental property. They both print in landscape format. One is titled "Depreciation and Amortization Report" and is most likely the one you need. The other is titled "Alternative Minimum Tax Depreciation" and will probable have all zeros for depreciation taken.
Remember, you have to add together the amounts in the "prior year depr" column and "current year depr" column to get the total amount of depreciation taken up to Dec 31, 2019. So if you sell the property in 2020 you'll want to add another year's depreciation to that total to account for the period of time in 2020 you will still own the property. That will help you achieve a rough estimate of your actual tax liability on any gain on the sale, as well as the depreciation recapture.
