Inside Costin Marcus
TRUSTED ADVOCATES FOR HIGH-STAKES BUSINESS DISPUTES
Costin Marcus PLLC is a leading commercial litigation boutique in Northern Virginia
Trusted by companies, business owners, and executives facing high-stakes business disputes. With decades of trial experience, we bring strategic foresight, precision, and courtroom credibility to every matter.
Clients turn to us when control of a business, significant money, or competitive advantage is at stake, or when a competitor, customer, employee, or business partner has violated a contract or broken the law. Many of our cases are litigated in federal and state courts across Virginia—including the “Rocket Docket” of the U.S. District Court for the Eastern District of Virginia and the Circuit Courts of Fairfax County and the City of Alexandria. We also frequently represent companies, business owners, and corporate executives in courts throughout the greater Washington, D.C. region, as well as in arbitrations and mediations nationwide.
We are seasoned trial lawyers, and that experience works to our clients’ advantage—whether we are addressing a judge or jury, examining a witness, briefing a complex motion, or negotiating with opposing counsel. Over decades of practice, we have honed the core skills of effective advocacy: mastering the facts, understanding the law, building a strategic and intentional record through focused discovery, and translating complex concepts into clear, persuasive arguments. Above all, we know how to tell a compelling story—both in the courtroom and in our written work. We take pride in this craft, and our clients value having us by their side when their business is on the line.
When it serves our clients’ interests, we are fully prepared to take a case through trial—and we have done so successfully. At the same time, many disputes can be resolved short of trial, and we routinely secure favorable outcomes through strategic negotiation and targeted advocacy. By seeing the endgame from the start and thinking several steps ahead of opponents, we position our clients for the best possible result. That preparation and strategic clarity drive the resolutions our clients rely on.
Our skill, preparation, and dedication to our clients produce meaningful results. In a closely watched trade secrets case, we helped secure the largest jury verdict in Virginia history—over $2 billion. In another recent matter, following a series of decisive courtroom wins, we obtained a complete walk-away settlement for a startup engineering firm sued for more than $3 million for allegedly poaching clients and customers. We also routinely represent companies and business owners in confidential arbitrations with current and former business partners, achieving favorable resolutions that allow our clients to move forward with confidence.
For a closer look at how we advocate in high-stakes business disputes, visit What We Stand For.
About Us
Meet Our Lawyers
At Costin Marcus PLLC, our strength lies in the experience, judgment, and courtroom skill of our lawyers. As one of Northern Virginia’s leading commercial litigation boutiques, we bring a hands-on, trial-tested approach to every client’s case. Our team is made up of seasoned advocates who master the facts, understand the law, and develop clear strategies that protect our clients’ interests when the stakes are high.
