Portrait of Niall McMillan

Niall McMillan

Counsel

Niall McMillan is a member of Offit Kurman’s Commercial Litigation Practice Group, where he represents businesses, commercial landlords, and individuals in complex litigation and business disputes. With a practical and solution-oriented approach, Niall is committed to helping clients achieve favorable outcomes while minimizing disruption and expense.

Niall’s practice spans a wide range of matters in federal and state courts, including business and contract disputes, commercial landlord and developer controversies, transactional litigation, and higher education proceedings and litigation. He is equally adept at representing clients in the courtroom and advising them proactively to avoid costly conflicts. His experience allows him to identify the issues most likely to affect a client’s case and tailor a strategy that balances risk, efficiency, and results.

Beyond litigation, Niall regularly counsels businesses on transactional and governance matters. He is a trusted advisor to his clients as they grow, operate, and sell their businesses. His transactional litigation experience gives him a unique perspective—bridging deal-making and dispute resolution to protect client interests at every stage of the business cycle.

Niall represents a diverse client base that includes publicly traded companies, regional businesses, nonprofit organizations, and individuals. He has a particular focus on advising and defending commercial landlords and developers, ensuring that property owners and managers are positioned to protect their investments while navigating tenant, vendor, and construction disputes and regulatory challenges. His Title IX work adds another dimension to his practice, where he provides thoughtful and zealous advocacy in highly sensitive matters involving investigations and disciplinary proceedings.

Before joining Offit Kurman, Niall honed his skills as a litigation and business law associate at a Bethesda-based firm. He also served as a mediator and client advocate with the American University, Washington College of Law’s Alternative Dispute Resolution Honor Society and ABA Mediation Competition Team, experiences that shaped his ability to negotiate effectively and advocate with precision.

    Education

    • American University (J.D.)
    • University of Arkansas (B.A.)

    State Bar Admissions

    • Maryland
    • District of Columbia

    Professional Affiliations

    • Fellow, Montgomery County Bar Association, Leadership Development Academy (2023-2024), Chamber Chats Chair (2024-2025), Co-Chair of New Practitioner Section Committee (2025-2026)

    Recognitions

    • Selected to Maryland Rising Stars® for Business Litigation (2027)
    • 2025 Top Attorney for Alternative Dispute Resolution, Bethesda Magazine 
    • Named to Best Lawyers: Ones to Watch® in America for Commercial Litigation (2026-2027)
    • Top Business Attorney, Bethesda Magazine, 2023
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Firm Highlights

  • Events
    AIA Tri-State Conference
    Princeton will serve as the backdrop for three days of connection, learning, and design leadership. From keynotes to tours to the Tri-State Design Awards, this year’s conference is designed to go far beyond education sessions. Kick off the week with pre-conference intensives and individual state component Design Award celebrations, followed by three days of education, inspiration, networking, and design excellence at the 2026 AIA Tri-State Conference—featuring pre-conference intensives, three keynote speakers, 25 education sessions, curated tours, an expo, spec academies, and the AIA Tri-State Design Awards—bringing together architects and design professionals from New Jersey, New York, and Pennsylvania to connect, learn, and celebrate the best of the profession. G2. Designing Secure Practices: Cybersecurity, Data Privacy, Contractual Provisions, and Insurance Risks for Architects (4:00 PM - 5:30 PM) Architects and design professionals increasingly rely on cloud platforms, BIM software, and digital tools to manage sensitive data, creating cybersecurity and privacy risks. A single incident can trigger liability claims, regulatory obligations, reputational harm, and insurance challenges. Yet many firms underestimate how contracts, insurance, and internal practices intersect during a breach. This program offers legal and insurance perspectives on cyber risk in architecture, examining liability exposure, risky contract provisions, and mitigation strategies. A cyber insurance expert will explain policy responses, coverage gaps, coordination with professional liability, and best practices for aligning insurance with contractual risk and protecting firms from evolving cyber threats. Learning Objectives: Identify key cybersecurity and data privacy risks faced by architecture firms and explain how these risks can impact professional liability and project outcomes. Analyze common contractual provisions to determine which clauses may increase exposure to cyber incidents and propose strategies to mitigate these risks. Evaluate the scope and limitations of cyber insurance policies, including coordination with professional liability coverage, to determine how a policy would respond in a breach scenario. Develop actionable risk management strategies by integrating legal, contractual, and insurance considerations to protect sensitive client and project data.