About Mark Leo
Mark Leo Mahan graduated from Rutgers School of Law–Newark. He completed his legal studies there before moving into practice across two states. His time at Rutgers is a throughline in his work, shaping how he approaches problems and counsel for clients.
After law school he gained admission to practice in both New York and New Jersey. Those dual licenses allow him to represent individuals and entities in matters that cross state lines. Over the years he has built a practice that operates on both sides of the Hudson, handling matters that require familiarity with the procedures and courts of each jurisdiction.
Mr. Mahan maintains offices under the names MAHAN LAW LLC and MAHAN LAW, PLLC. He runs his client work through those firms and manages the day-to-day needs of the practice from those platforms. The two entities serve as the organizational homes for his legal work and for the teams that support it.
His professional approach favors clear advice and practical steps. He structures matters so clients understand options and likely outcomes. He places importance on timely communication and on preparing cases or transactions for the specific demands of New York and New Jersey practice. Colleagues describe him as methodical and measured in court filings and negotiations.
Outside of direct client engagement he keeps current on developments from the courts and bar in both states. That ongoing attention helps him adjust strategies when statutes or rules shift. He balances litigation readiness with efforts to resolve disputes where appropriate.
Those who consult him will find a lawyer familiar with the mechanics of litigation and transactional work in two adjoining jurisdictions. He organizes matters to reflect differences in procedure between New York and New Jersey, and he draws on his Rutgers training when parsing complex issues. He currently practices at MAHAN LAW LLC and MAHAN LAW, PLLC, where he handles matters arising under the laws of New York and New Jersey.
