I looked a bit further.
Found this for nonresidents of Virginia:
Filing Status 2 - Married, Filing a Joint Return: You and your spouse may file a joint return if: (1) you filed a joint federal return; or (2) neither of you was required to file a federal income tax return; and (3) both spouses had income from Virginia sources. If only one spouse had income from Virginia sources, a separate return must be filed under Status 4. If one spouse had Virginia source income and the other spouse had no income from any sources, use Filing Status 3.
We satisfy 1) so we are able to file a joint return. Is that your understanding?
