Dear AmeliesUncle:
Thanks for helping. Below are answers to your questions so you can continue helping me.
1. I hadn't had losses on this rental from 2011 through 2018.
2. My mistake on 2011 was:
TurboTax prompted me to enter the "land "value. Since this rental was a new purchase and I did not have the exact info at the time, I read somewhere as how to approximate and entered an approximate 20% of the total purchase (24K - last week, I found out the correct 2011 land value from the county). Then, at the prompt for Improvement (e.g., the building value), I mistakenly thought TurboTax asked for the Improvement that I'd made to build 2 small rooms in the basement, I enter 10K instead of the (actual purchased value - 24K). Thus, I missed more than 50K of rental building value since 2011. After these, TurboTax told me my depreciation is a bit more than $1400. I didn't notice this depreciation amount until 2022.
