Fill out everything to file your federal and resident state return married filing joint to maximize your deductions (if you are). The non-resident is completed as well as you know , but when you are submitting your returns you can skip Delaware and only file federal and your resident state Then create a separate new return on here (name it something different) where you select married filing separately and do not include your spouses w2 in the federal section. Delaware will then accurately reflect what should be the only taxable income and then when you file you can choose to skip federal and only file the state return.
