Well sadly you should have completed the non resident LA return BEFORE you completed the resident state return so the credit for taxes paid to another state would have completed automatically ... now you will have to amend the VA return and the federal if you had not reported that sale already.
Log into your return ... scroll down and click on ADD A STATE then complete the LA interview and file it. Then close and re open the return and choose to amend it this time and go to the state tab to amend the VA return.
