portrait of Marcy Koscinski

Janina "Marcy" Koscinski

Attorney

Marcy Koscinski focuses on advising residential and commercial property owners and managers with her practice built around clarity, efficiency and actionable legal guidance. Marcy partners with landlords to protect their assets, resolve disputes, and ensure compliance, allowing her clients to focus on running successful real estate operations.

Marcy works with property owners, real estate investors, and property management companies across Washington, D.C., and Maryland. Her approach combines a solid understanding of landlord-tenant law with a practical mindset rooted in real-world experience. Whether it’s reviewing leases, managing eviction procedures, navigating code violations, or responding to tenant disputes, Marcy helps clients make informed, strategic decisions that protect long-term value and reduce liability exposure.

Before focusing on landlord representation, Marcy served as a judicial law clerk to the Honorable Francis J. Jones on the Superior Court of Delaware. During her clerkship, she gained broad exposure to civil, criminal, and complex commercial litigation. This experience sharpened her legal research and drafting skills, providing insight into how courts evaluate legal issues from multiple perspectives. She now applies these insights to help landlords anticipate risks and avoid litigation where possible.

Marcy began her legal career at a boutique law firm in Virginia, where she worked on a range of business and real estate matters. Her practice included guiding clients through business formations, resolving partnership disputes, and advising on settlement negotiations. She also represented clients in cases involving homeowners’ associations and condominium conflicts, an experience that gives her a unique advantage when handling landlord issues that intersect with community governance, common interest developments, or shared facilities.

Outside of her legal work, Marcy enjoys running, rock climbing, traveling, and reading.

    Education

    • Catholic University of America Columbus School of Law (J.D.)
    • National University of Ireland (LL.M.)
    • George Mason University (B.A.)

    State Bar Admissions

    • District of Columbia

    Admitted in Washington, D.C. Not admitted in Maryland. Supervised by a Maryland attorney.

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.