Sam Callahan

Kimberly A. Parker's practice focuses on white-collar criminal matters, internal corporate investigations, and compliance counseling. Ms. Parker is vice chair of the firm's Litigation/Controversy Department, co-chair of the White Collar Defense and Investigations Practice, and co-leads the Foreign Corrupt Practices Act (FCPA) and Anti-Corruption Practice. Ms. Parker is also co-chair of the firm's Pro Bono and Community Service Committee.

Greg Luce handles civil and criminal litigation and regulatory matters involving the health care industry. He has represented health systems, pharmaceutical and medical device manufacturers, and other health care providers in litigation involving fraud and abuse enforcement, False Claims Act defense, and Medicare and Medicaid reimbursement. Mr. Luce focuses on the counseling and defense of health care providers, suppliers, pharmaceutical companies and physicians under state and federal fraud ...

Jennifer Locke is a lawyer recognized by Best Lawyers in the practice area of Trusts and Estates. Jennifer practices law in Washington, District of Columbia Best Lawyers has recognized Jennifer Locke since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jennifer Locke is held by other lawyers.

David is the managing partner of the Washington, D.C. office, as well as the co-leader of the Investment Management Group. Prior to joining Sullivan & Worcester, David was Special Counsel in the Washington, D.C. office of Gibson, Dunn & Crutcher. He previously served as Assistant General Counsel for Legislation and Investment Company and Adviser Regulation at the Securities and Exchange Commission and as Counsel to SEC Commissioner Aulana Peters.

Jessica Sura is a lawyer recognized by Best Lawyers in the practice area of Medical Malpractice Law - Defendants. Jessica practices law in Fairfax, Virginia Best Lawyers has recognized Jessica Sura since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jessica Sura is held by other lawyers.

Nancy N. Delogu is a lawyer recognized by Best Lawyers in the practice area of Litigation - Labor and Employment. Nancy N. practices law in Washington, District of Columbia Best Lawyers has recognized Nancy N. Delogu since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Nancy N. Delogu is held by other lawyers.

Amy E. Totten approaches every case by carefully considering all perspectives involved. As a former prosecutor, she understands the importance of thorough preparation for trial and thoughtful analysis, particularly when clients are facing significant, life-changing circumstances. Her ability to anticipate opposing arguments allows her to develop practical strategies tailored to each client’s situation. Over more than two decades in legal practice, Amy has handled thousands of matters ra...

Erin Girard is a real estate and land use lawyer with significant experience in securing approvals on a wide range of complex commercial, institutional and mixed-use projects. She represents and advises clients in all aspects of land use law, including regulatory permitting and licensing, from planning through post-construction. Her practice spans due diligence review, zoning entitlements, rezoning, variances, special exceptions / conditional uses, subdivision approvals, historic preservation...

Caroline H. Cheng is a principal in the Washington, D.C. Region office of Jackson Lewis P.C. Her practice focuses on providing preventive advice and counsel, as well as representing employers in workplace law matters. In her counseling practice, Caroline strives to provide practical business advice based on best practices. She regularly advises clients on a broad range of matters arising under federal, state, and local laws, including policy design and drafting, employment contracts, restrict...

For more than two decades, Jo Anne Bitner has helped commercial and residential real estate developers to navigate the array of legal and business challenges inherent in a complex and ever-growing market. Her work with regional and national developers has been an integral key in bringing to life many of the vibrant neighborhoods, commercial centers, sprawling data centers, and public transportation systems that define the growing western suburbs of Washington, D.C. Jo Anne regularly coordinat...