J. Derek "Derek" Mason

Michael J. Goecke is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Litigation - Real Estate and Litigation - Trusts and Estates. Michael J., who practices law in Bethesda, Maryland, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael J. is held by other top lawyers in the same geographic and legal practice area.

John M. Remy is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management, Labor Law - Management and Litigation - Labor and Employment. John M., who practices law in Reston, Virginia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John M. is held by other top lawyers in the same geographic and legal practice area.

Leslie J. Schneider is a partner in Ivins, Phillips & Barker's Washington office. His practice concentrates in accounting methods, the timing of revenue and expenses, the valuation of inventories, and capital v. expense issues. Mr. Schneider is most often recognized for his three-volume treatise, Federal Income Taxation of Inventories, published by Matthew-Bender. Mr. Schneider has developed a reputation as the premier attorney in the United States in the field of tax accounting and inven...

Practice Experience Jonathan is a leading global authority on international disputes and investment, as well as complex negotiations and crisis management. As head of Latin American arbitration, he has successfully advised on some of the most critical issues of the era in Latin America and beyond, such as the cultural patrimony of Machu Picchu, the new Ecuador international airport, the Argentine sovereign debt crisis, the development of the Peruvian energy sector and the Panama Canal expansi...

Having spent over a decade as a prosecutor in the criminal and civil divisions of the U.S. Attorney’s Office for the District of Columbia, Michelle Bradford uses her extensive knowledge and skill, coupled with her profound determination and sharp wit, to defend clients in white collar criminal and complex civil litigation matters. Michelle brings considerable value to clients facing complex litigation by thoroughly and efficiently reviewing issues, identifying the heart of a matter and ...

Jason R. Meltzer is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Jason R., who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jason R. is held by other top lawyers in the same geographic and legal practice area.

Thomas F. Quinn III is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Thomas F., who practices law in Reston, Virginia, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas F. is held by other top lawyers in the same geographic and legal practice area.

John E. Smith is a top attorney recognized by Best Lawyers in the practice area(s) of International Trade and Finance Law. John E., who practices law in Washington, District of Columbia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John E. is held by other top lawyers in the same geographic and legal practice area.

Julia Yolles is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Julia, who practices law in Fairfax, Virginia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Julia is held by other top lawyers in the same geographic and legal practice area.

Bob Wellen, a partner of the firm, has practiced tax law for nearly 35 years. His practice involves planning, structuring and negotiating business transactions and representing taxpayers seeking private letter rulings from IRS and tax policy determinations from IRS and the Treasury Department and in controversies with IRS. He also serves as an arbitrator and as an expert witness in commercial disputes involving tax issues. Bob grew up in Jersey City, New Jersey. He graduated from Yale College...