Filing Status Question

I am the executor of my parent's estate.  My father passed away in 2021 and I filed the taxes Married Filing Jointly for my mom last year.  My mother passed away last year after the taxes were filed.  My question is this.  My father has a 1099-DIV for 2022 and I have to file my mother's taxes.  Can I still file Married Filing Jointly in 2022 because of the 1099-DIV or do I have to file Single for each of my parents and do separate Tax Returns?  Thanks in advance.

 

Mark S.