Thank you for your fast response and suggestions!
I have found the problem (operator error, of course) and resolved it within the K-1 entries. I had not matched the Rental real estate activity entries with the correct K-1 that was carrying forward the previous years' passive activity unallowed losses.
To clarify, this corporation has two K-1's carried forward by TurboTax from year to year. One is for Business - Box 1 activities, and one is for Rental real estate - Box 2 activities. In 2021, I entered Business numbers via Easystep into the K-1 that carried forward the passive losses. When I switched the K-1's so Rental activity was selected for the K-1 carrying the losses, TurboTax automatically changed the prior years' passive activity unallowed losses to "allowed" in 2021 (the year of my husband's death). Now, I can reduce the actual dollar amount allowed via override entry.
Your response also helped me to understand why I was having difficulty with overrides in general. I have Premier desktop but wasn't paying close enough attention to the worksheets. Black font does not care to be overriden. Thank you, again.
