You need to file the DC form to get all your DC withholding back.
VA won't allow a tax credit for taxes paid to DC because they expect you to get all the DC withholding back.
You also need to file a form with the DC employer (ASAP ) to stop all DC withholding,
https://otr.cfo.dc.gov/sites/default/files/dc/sites/otr/publication/attachments/2018%20D-4A.pdf
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And then see if they can only have VA withholding done during the year with the proper VA withholding form
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
