Basically, (and if I"m understanding your situation correctly)
the Prior Year Depreciation amount on the 2013 return (1st year I used TTax) was incorrect
So for each and every year it was rented up to and including 2018 (not 2019), total up the amounts in the "current year's depreciation" column to get your total "prior year's depreciation taken" on the property. You'll enter that amount into the prior year depreciation box in the turbotax program. Then the program will figure the correct current year (2019) depreciation for you, which is prorated based on the date you closed on the sale.
I probably I would need to do the same as above for the other assets, but they are small amount vs. the rental property and I do not have the "Amortization & Depreciation Report" for them from 2009 to 2012.
What you can do, and "most likely" get away with it, is to delete those rentals from TurboTax 2019 and enter them anew *without* importing data for those rentals from the 2018 return. THen when you enter the "in service" date (which will be a prior year) the program will figure the total of the prior year's depreciation for you. This will not affect the amount of 2019 depreciation you will be taking on the property. But it will get your depreciation history correct in the program.
Now "legally speaking" this should be done via IRS Form 3115-Change in Accounting Method. But I see no sense it it, since it will not change the actual depreciation taken for any tax year now, or in the past. All you're doing is "updating" the amount of prior year's depreciation, to the correct figure.
When it comes to the 3115, this form is *NOT* simple and *REQUIRES* professional help to get it right. You try doing it yourself and mess up, then *that* is what will raise flags at the IRS. Let's avoid that possibility at all costs.
