Karen A. Popp
About Karen A. Popp
Karen A. Popp is a lawyer based in Washington, DC and has been recognized in The Best Lawyers in America® since 2011. Karen A. Popp is recognized in the following practice area:
- Washington, District of Columbia
- Criminal Defense: White-Collar
Current Firm: Sidley Austin LLP
Education: The University of North Carolina at Chapel Hill, J.D., graduated 1989
Location: Washington, DC
Nearby Lawyers
Avi Kumin is a founder and partner at Katz Banks Kumin. For over 20 years, Mr. Kumin has been successfully advising employees about their legal rights, resolving difficult situations with employers, and litigating employment claims in court. Mr. Kumin’s practice focuses on whistleblower protection, sexual harassment and assault, executive negotiations, contractual disputes, discrimination, and retaliation, among other areas of employment law, often in highly complex and contentious situ...
Jonathan S. Klarfeld is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust Law. Jonathan S., 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 Jonathan S. is held by other top lawyers in the same geographic and legal practice area.
For more than 30 years, I have established strong relationships with my clients and have enjoyed working closely with them to better understand their goals. It is my top priority to be attentive and responsive to my clients’ needs. While I focus on real estate or leasing transactions, I also understand that our clients are real people. My clients include residential and commercial developers and builders throughout the Washington, D.C. and Baltimore region. I regularly assist them with ...
Sean P. Kelly has practiced exclusively in the area of family law and divorce for his entire career as a lawyer, which began in 1994. Having "grown up" in the field, Sean has extensive litigation experience and a significant knowledge and understanding of the law. One benefit of his years of litigation experience is that it affords a seasoned trial lawyer like Sean many more opportunities to achieve fair and equitable settlements for his clients. His substantial trial experience, coupled with...
Peter E. Ciferri is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law and Real Estate Law. Peter E., who practices law in Potomac, Maryland, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Peter E. is held by other top lawyers in the same geographic and legal practice area.
R. J. Davis is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. R. J., who practices law in Tysons, Virginia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which R. J. is held by other top lawyers in the same geographic and legal practice area.
Carolyn E. Smith is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Carolyn E., who practices law in Washington, District of Columbia, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carolyn E. is held by other top lawyers in the same geographic and legal practice area.
Kara M. Ariail is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Kara M., who practices law in Tysons, Virginia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kara M. is held by other top lawyers in the same geographic and legal practice area.
Don King’s practice primarily involves representation of debtors, creditors, and committees in Chapter 11 reorganizations, and he also represents other types of debtors and creditors, particularly businesses and institutional lenders, in all phases of the bankruptcy process including workouts. Since 1991, he has served as a Chapter 7 Trustee in Bankruptcy for the Eastern District of Virginia, and he is currently head of the firm’s Bankruptcy & Creditors’ Rights practice....
Sanford K. Ain is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Real Estate Law. Sanford K., who practices law in Washington, District of Columbia, has been recognized since 1983. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sanford K. is held by other top lawyers in the same geographic and legal practice area.
Explore and Learn
2026 Best Lawyers Awards: Recognizing Legal Talent Across the United States
by Jamilla Tabbara
The 2026 editions highlight the top 5% of U.S. attorneys, showcase emerging practice areas and reveal trends shaping the nation’s legal profession.
Gun Rights for Convicted Felons? The DOJ Says It's Time.
by Bryan Driscoll
It's more than an administrative reopening of a long-dormant issue; it's a test of how the law reconciles the right to bear arms with protecting the public.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
How to Choose a Good Lawyer: Tips, Traits and Questions to Ask
by Laurie Villanueva
A Practical Guide for Your First-Time Hiring a Lawyer
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.