Taxpayers who live in Maryland and work in Delaware must file income tax returns with both states. A UI claim is filed against the state where you worked, not where you reside. 8.How Do I Serve a Complaint or Petition? The court will issue a Writ of Summons, 5 to 10 days after you file your Complaint or Petition. If you and your spouse live separate lives for at least six months, you can file for divorce based on the ground (legal reason) of a "6-month separation." Instruction 26 in the Maryland resident tax booklet outlines the following steps for completing your part-year tax return correctly: You must file Form 502. If you aren't sure whether you qualify for an exemption, speak with a lawyer. Go to your local board of elections and fill it out and turn in the form. Prepare to file your completed forms. • Call the court to ask about filing fees and method of payment.