The Irving Law Firm Address - 9253 Mosby St., 2nd Floor, Manassas, VA 20110 Contact Us Now (703) 844-4118 The Irving Law Firm, based in Manassas, VA, is committed to serving Northern Virginia with integrity and personalized legal care. Founded by John Irving, the firm offers trusted support in Criminal Defense, DUI, Domestic Assault, Family Law, Personal Injury, Estate Planning, Adoption, and Business Formation. As a family-oriented practice, The Irving Law Firm prioritizes clear communication and tailored guidance to help clients navigate complex legal matters. If you need a dependable DUI attorney in Manassas VA, the firm is here to advocate for your best interests with compassion and transparency. https://www.theirvinglawfirm.com/practice-areas/criminal-law/dui/