My response does seem rather rude. But it's not at all intended that way. My intention is to get your thinking on a track that matters.Based on the information provided thus far, you're digging holes in water and are wondering how long it's going to be before you get to the bottom.
Am I permitted to take Safe Harbor steps if -0- rental income?
Yes. But why bother if you sold the property? All carry over passive losses which can include QBI, are released in the year of the sale. Since you sold the property in 2020, once your passive rental losses get your taxable passive rental income to $0, any remaining losses are deducted from "other" ordinary income. With no rental income in 2020, your taxable rental income is $0 before you even get to passive losses, deductions, or QBI. So why are you wasting time and effort on something that isn't going to matter anyway? Your QBI deduction is going to be zero for 2020 anyway.
