About Marshall Emery
Marshall Emery Yaap is licensed to practice in Maryland, the District of Columbia and before the U.S. Supreme Court. Those credentials mark a practice that crosses local and federal lines. He maintains memberships in several professional organizations and works from multiple offices.
Yaap is an active member of the Maryland State Bar Association, the American Bar Association, the Montgomery County Bar Association and the District of Columbia Bar Association. He has remained involved in bar activities over the years, attending meetings and staying current on changes in procedure and court rules. That involvement helps him navigate procedural differences between Maryland courts, D.C. tribunals and federal appellate forums.
His career has centered on representing clients in matters that require admission in more than one jurisdiction. He has handled filings, briefs and court appearances where state and federal practice intersect. Admission to the U.S. Supreme Court enables him to accept matters that proceed to the nation's highest tribunal, and he has prepared filings for customers who needed representation in complex appellate settings.
Colleagues describe Yaap as methodical in his approach. He favors careful preparation and early courtroom readiness. He is known for attending to procedural detail and for coordinating filings across jurisdictions when cases cross state and federal lines. He keeps professional ties in Montgomery County and in Washington, D.C., which clients find useful when matters require local counsel or simultaneous appearances.
Yaap works out of a location on Wisconsin Avenue and from a main office. His presence in both places supports a practice that serves clients across the Maryland–D.C. corridor. He handles matters that call for familiarity with local court calendars as well as federal filing systems. He also provides counsel on appellate procedure to lawyers and clients who need alignment between trial strategy and potential appeals.
Throughout his career he has balanced courtroom work with the demands of appellate briefing. That mixture means he spends time both in trial settings and on written advocacy. He continues to participate in bar association activities and to maintain the admissions that let him appear in local and national courts. He practices from offices at 5425 Wisconsin Avenue and from his main office, representing clients in matters arising under Maryland and D.C. law and in federal appellate work, including appearances before the U.S. Supreme Court.
