Client received W-2 with income and withholding for MA when he really lived in NC and CT during the year.  He put MA (parent's home) as mailing address for new CT company because he didn't know where he'd settle and thus they withheld MA.  I'm very comfortable with multi states and non resident states but it's coded MA and withheld.  Is there a place on return to back that info off MA or should I just attach explanation?  Not sure how to proceed.

Thanks