YES - if you can document that your support is 50% or greater of the parents disability check
No.Well, you can claim you love him dearly...but you can't claim him on your taxes as a dependent.
Either
YES
yes as long as you are not a minor and you provided more than half of her financial support for the year in which you are filing taxes
Yes you can claim childcare. As far as I know there is no set amount you can deduct.
Not on taxes no. The parent the child lives with has the main right to claim the child. But if that parent can't or doesn't want to then the other parent can
As part of some custody arrangements in the Divorce Decree, you may find that each parent will get the right to claim the children on taxes in alternate years. This helps to distribute the tax exemptions fairly.
No
No. But they can't claim themselves if they file. No. But they can't claim themselves if they file.
Yes if he is your dependent. Age doesn't matter you are the parent.
Whether you can claim the children on your taxes depends on your divorce agreement. Only one parent can claim per year, in any case.
if she is supporting the children, their guardian or foster parent she can claim them. She pays taxes on her income and the children are part of deductions. This is something you need to discuss with her and a tax expert.