One can only assume that the higher earner is remarried and their wife cares for the child; however, if they have to hire caregivers, then that...

No - it would be a fully noticed motion; however, if there is an emergency that puts one of the parties or their children in harm’s way, then an ex...

Yes - if the two of you can reach an agreement; here’s the form: https://www.courts.ca.gov/documents/fl355.pdf

You would have to file a Request for Order and provide facts that would support a modification of custody - including dad’s future prognosis.

It sounds like she dropped the ball and didn’t close the case and is now trying to cover her own ass. However, it’s not illegal.

I don’t think you can fix it - but you should get a court-appointed attorney. Much depends on add’l facts not included in your post but you will...

I don’t understand what you mean by “my ex husband had my son as a little boy” - he didn’t give birth to him; did he adopt him? Are you his...

From what you describe, it doesn’t seem like his having sole custody would really change anything since you communicate mostly virtually, and...

You would file a Petition for Guardianship of the Person and provide facts that show the parents are unable to care for the children. Here’s a link...

…and the real issue is whether you had custody of the child during 2021 and whether the support order was retroactive to prior to January, 2021.