Who We Are

At Roesser PLLC, we are dedicated to resolving international disputes.

With a proven track record of excellence, our team possesses more than two decades of real-world experience. Serving as arbitrators and advocates, we’ve handled disputes involving complex legal issues across jurisdictions, industries, and numerous national laws.

We have experience under the rules of all major arbitral institutions:

—   International Chamber of Commerce (ICC)
—   London Court of International Arbitration (LCIA)
—   AAA’s International Centre for Dispute Resolution (ICDR)
—   Stockholm Chamber of Commerce (SCC)
—   German Arbitration Institute (DIS)
—   Singapore International Arbitration Centre (SIAC)
—   Dubai International Financial Centre (DIFC-LICA)
—   International Centre for Settlement of Investment Disputes (ICSID)

This combination of experience and expertise positions us to lead the field of global arbitration. Our international work has spanned a wide range of commercial sectors — financial services, life sciences, energy and resources, hospitality, and entertainment — in many cross-border disputes. These include project finance, joint venture, third-party funding, electronic disclosure, insurance coverage, drug licensing, post-acquisition, ISDA master agreements, and cases for and against sovereigns.

We advise and work closely with clients throughout every aspect of dispute resolution: drafting arbitration clauses, providing pre-arbitration counseling, arbitrating disputes, and litigating enforcement issues.

As thought leaders in the arbitration community, we devote ourselves wholly to every case, adding value and delivering optimal results day in and day out.


Our Team

Our flexible team enables us to tailor our services and fee structures to fit our clients’ specific needs.

We adapt to you — regardless of the size and complexity of a matter.

Our attorneys have trained and honed their skills at the world’s leading firms. We work as a unified whole, and we pride ourselves on bringing to every interaction the deep and sophisticated knowledge and capability of a multinational firm, the operational efficiency and collaboration of a tight-knit team, and the clear communication and uncompromising loyalty of a solo practice.

We possess the freedom, the flexibility, and the foresight to help our clients succeed in uncertain times.


 John D. Roesser


Michael D. Igyarto


Our Mission

We deliver to our clients a more valuable business approach to arbitration.

Our founder, John Roesser, has more than two decades of experience with firms whose employees number in the thousands. In recent years, however, shifting economic conditions have necessitated a change of approach.

Many clients today require a smaller, more focused group of advocates working on their behalf — groups that, because of their size, are able to minimize overhead, avoid conflicts of interest, and maximize both results and value.

Roesser PLLC is this kind of group, a team with a unique combination of depth and breadth, a team capable of handling international disputes of all kinds, a team that commits to you.

Having worked on cross-border cases throughout the financial crisis of the last decade, our firm is in an advantageous position to navigate the new landscape of global commerce.

We work to earn and maintain our clients’ trust. We aim to exceed their expectations.


Our Services

Our work transcends international boundaries. Our experience transcends individual business sectors.

We handle a wide array of cross-border disputes for clients working in a wide range of industries, and we do it all: arbitration clauses; pre-arbitration counseling; litigation seeking to compel arbitration; representing clients in arbitration proceedings; serving as an arbitrator in international commercial arbitrations; and litigating post-award enforcement issues. No matter what your particular needs are, we’re with you every step of the way.

Through arbitration, we’ve handled disputes ranging from traditional breach-of-contract cases to complex multinational pharmaceutical licensing disputes.

We meet clients on their own terms, researching deeply, communicating clearly, and developing winning strategies.