Use Form MW506AE to apply for a Certificate of Full or Partial. To ensure proper posting to your account, please include your Department ID Number on your return and in all communications with the Department.SECTION B: To register for an Unemployment Insurance Account, complete Part 1 or Part 2 of this Section, and visit the. Welcome to the Maryland OneStop Portal. OneStop is the central hub for Maryland State licenses, forms, certificates, permits, applications, and registrations. Most forms used in the District Court are contained in this index. File the form in the District Court in the county where the rental property is located. Lawyers at the Court Help Center may help you understand court documents, complete court forms, and prepare for court. Your employer would be required to withhold Delaware taxes as long as you work in Delaware. Delaware Resident Working Out of State.