No, once a gift is given, it legally belongs to the recipient and cannot be taken back by the giver.
Yes and no, depending on the circumstances. Not if the child was adopted.
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The parent.
The parent. It was the parent who incurred the expenses to support the child.
Disowning a child is not a legal concept, and there are no rules. Commonly, people refer to a parent writing an adult child out of his/her will as disowning a child. In this case, yes, the parent could write them out and write them back in again as often as they want.
No. Child support arrears are owed to the parent.
Yeah but will the child pay back? And will the parent allow to give their child a huge amount of money?
no
Generally, only under circumstances in which there is clear evidence that the child is in an unsafe environment, and has been reported as such. And in that case the parent must file for an emergency order with the court of jurisdiction. It will be followed up by a full hearing within a couple of weeks.
No, once a gift has been given, it cannot be taken back legally.
Yes.
In general, once a gift has been given, it cannot be legally taken back unless there was a specific condition attached to the gift at the time it was given.