If the house did not go to the estate, then there's no way you can say you filed a "final" 1040 tax return for your mother. As it stands now (the way I see it) you'll also be filing a 2021 tax return for your mother.
The statements above are 100% FALSE. Everyone who dies has some kind of estate and your mother's house would be included. MORE IMPORTANTLY you need to file a final 1040 for your mother FOR THE TAX YEAR IN WHICH SHE PASSED and that was NOT 2021. The way Carl "sees it" is WRONG and I'm not sure how "30 plus years with rentals" qualifies him to answer questions centered around estates and final returns for deceased taxpayers.
