Our International Business Law Practice offers unparalleled support and know-how to help European companies accomplish their goals for US expansion. Use our self-service options on this website to pay your taxes or make a phone or video appointment at your convenience.Businesses registered with DTA in the previous year will receive a renewal notice in the mail in January. MDE Law Group provides advice for businesses in the following areas: Business Transactions and Contract Review; Corporate Structuring; Employment Law. This Virginia SBDC page discusses the International Business Development Program, which helps Virginia firms enhance their global success. Fairfax NOVA Advantage. Major EmployersLearn about the Fortune 500 companies, international businesses and visionary startups breaking the mold in Fairfax NOVA. What is the process if I'm opening a new business? First, you will need to contact the Zoning Department and fill out a Use Permit Application. Find the best business attorney serving Fairfax County.