Levi McAllister

Paul Oosterhuis is a senior international tax partner representing clients on a wide range of international and U.S. tax matters. Mr. Oosterhuis has extensive experience in international mergers and acquisitions, post-acquisition integration transactions, spin-offs, internal restructurings and joint venture transactions. He also represents multinational companies in nontransactional international tax planning and IRS controversy matters. In recent transactions, Mr. Oosterhuis has represented:...

Harry L. Gutman is a top attorney recognized by Best Lawyers in the practice area(s) of Government Relations Practice and Tax Law. Harry L., who practices law in Washington, District of Columbia, has been recognized since 1997. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Harry L. is held by other top lawyers in the same geographic and legal practice area.

Aaron M. Oser is a top attorney recognized by Best Lawyers in the practice area(s) of Technology Law. Aaron M., who practices law in Washington, District of Columbia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Aaron M. is held by other top lawyers in the same geographic and legal practice area.

Kevin A. Ewing is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law and Environmental Law. Kevin A., who practices law in Washington, District of Columbia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kevin A. is held by other top lawyers in the same geographic and legal practice area.

Lars Golumbic serves as the co-chair of the firm’s Litigation Practice. His ERISA litigation practice includes the defense of “excessive fee” and ESOP class actions brought against plan sponsors, fiduciaries, and service providers. Lars also represents health plan sponsors and health insurers in actions brought under the Mental Health Parity and Addiction Equity Act. Additionally, Lars defends plan trustees, fiduciaries, companies and their board members, and service provide...

Ashley B. Sawyer is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Ashley B., 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 Ashley B. is held by other top lawyers in the same geographic and legal practice area.

Janet L. Goldstein is a top attorney recognized by Best Lawyers in the practice area(s) of Qui Tam Law. Janet L., who practices law in Washington, District of Columbia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Janet L. is held by other top lawyers in the same geographic and legal practice area.

Christopher M. Ruhlen is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law. Christopher M., who practices law in Bethesda, Maryland, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christopher M. is held by other top lawyers in the same geographic and legal practice area.

Eduardo S. Garcia is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Eduardo S., who practices law in Rockville, Maryland, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Eduardo S. is held by other top lawyers in the same geographic and legal practice area.

Larry has significant experience in government contract consultation and litigation. His practice sees him handling significant bid protests before the U.S. Government Accountability Office (GAO) and the Court of Federal Claims, as well as internal investigations. Clients commend Larry’s “excellent command of government protest law and strategy” ( Chambers USA ) and how he “excels in litigation of government contracts and due diligence in the context of M&A” ...