That is actually my scenario. My wife (process of divorce) left. I have been taking care of the kids on my own now for a few years. I am lucky to have a good job that was not affected by the changes Covid caused.
In my case, I did check that someone else could claim her on their taxes. Since I was not sure if her new guy would be doing that. However, that was in 2018. Since then, it appears this option has been carrying over by itself.
From what I read in a few different areas, having that box checked for either person would disqualify both from the stimulus check.
I am hopeful that my divorce finalizes this year.
