Separated taxpayers, might get divorced in 2025, but filing MFJ for 2024.  He will sign in person, but she is remote and has not returned my calls.  He says MFJ is the status they want to use. I don't know if she has an opinion about Joint vs. Separate.  I can't take his word for it but I feel like I have met my responsibility.  I think I will send her the tax return prior to filing it. And if I don't hear back I will file with MFJ.