Adam T. Teufel

Began the practice of law at the Federal Power Commission in 1974. Joined Sidley & Austin (now Sidley Austin LLP) in 1977, elected to partnership in 1981. Co-head of Energy practice, 2006- present

George Sepsakos is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. George, 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 George is held by other top lawyers in the same geographic and legal practice area.

Tanja H. Castro co-founded CastroHaase PLLC in 2012. She is included in the 2013, 2014, 2015 and 2016 editions of Washington, DC & Baltimore’s Best Lawyers. Her practice is focused in the areas of commercial real estate valuation and taxation issues, including property tax assessment appeals. She advises clients on minimizing their real estate tax obligations. Ms. Castro is experienced in reviewing, analyzing and obtaining reductions in the assessments of all types of commercial pro...

Courtney M. Brown is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Courtney 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 Courtney M. is held by other top lawyers in the same geographic and legal practice area.

Making strategic decisions for the future can be challenging during a family crisis like divorce. Jonathan Dana, a compassionate and straightforward divorce attorney with more than 35 years of experience, helps clients navigate these difficult times to make educated, informed and optimal decisions for their circumstances. “I present clients with options, letting them know that my role is to guide, rather than tell them what to do,” says Jonathan. “It’s important that t...

Philip Baker-Shenk is a partner in our firm's Indian Law Practice Group and our Entertainment Law Practice Group. He provides legal and policy representation to dozens of Native American Indian Tribal governments as well as Tribal organizations and companies doing business with Indian Tribes. Mr. Baker-Shenk began working on behalf of Indian Tribes in our Nation's capital in 1976. For half a decade, he served as staff in the U.S. Senate, including two years as Majority General Counsel to Indi...

Jennifer Eller is co-chair of Groom’s Retirement Services Practice Group and Fiduciary Practice. She’s been with the firm since 1998, beginning as a law clerk, and has been a practicing attorney at Groom since 2000. As a practice group chair, Jenny ensures that the strategic direction and initiatives of the group position Groom to serve the needs of its financial, corporate, and public plan clients. In her practice, she operates from a similar perspective. She advises financial in...

Jacki Thompson represents management in a wide range of employment matters, with particular expertise in labor relations in the airline and healthcare industries. Jacki guides clients through all facets of labor law. As a member of the firm's Airline Group, she assists both airlines and airline carrier service providers in grievance resolution matters, including grievance arbitrations and mediation. She has also successfully defended multiple AIR21 cases for her airline clients. In addition, ...

Paul F. Forshay is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law and Energy Regulatory Law. Paul F., who practices law in Washington, District of Columbia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Paul F. is held by other top lawyers in the same geographic and legal practice area.

Known for her straightforward, “cut-to-the-chase” approach to lawyering, Deborah P. Kelly represents employers in virtually all areas, from multibillion-dollar high tech and financial services companies to nonprofit associations and other law firms. Deborah helps her clients adopt best practices that minimize the risk of litigation. She designs and leads in-person training for boards of directors, managers, human resources professionals and other employees. While these trainings f...