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My bf upped his child support to 100 a week in the state of Massachusetts he legally has the right to claim his daughter... he went to court the other day his ex didn’t show up so he won by default does he have to fill out a IRS form 8332 his ex  has to sign it ??? And give him  permission to claim his daughter every other year or because she didn’t show up for court he won so he doesn’t have to fill out a form??? He has joint custody of her 

 

thanks for any info will greatly be appreciated