Daniel H. Petkoff

Erika Harmon Arner is a nationally recognized leader in trial practice before the Patent Trial and Appeal Board (PTAB) and related appeals to the U.S. Court of Appeals for the Federal Circuit. She consistently ranks as one of the top three female attorneys appearing in PTAB trials and was named a PTAB Litigator of the Year by Managing Intellectual Property. She has argued and won a number of landmark cases at the PTAB and Federal Circuit for both patent challengers and patent owners. Erika&rs...

Abbe David Lowell is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Abbe David, who practices law in Washington, District of Columbia, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Abbe David is held by other top lawyers in the same geographic and legal practice area.

Gerald A. Morrissey III is a top attorney recognized by Best Lawyers in the practice area(s) of Admiralty and Maritime Law. Gerald A., 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 Gerald A. is held by other top lawyers in the same geographic and legal practice area.

Kurt R. Karst provides regulatory counsel to pharmaceutical manufacturers on Hatch-Waxman patent and exclusivity, drug development, pediatric testing, and orphan drugs. He helps clients develop strategies for product lifecycle management, obtaining approval, managing post-marketing issues, and defining periods of exclusivity. As the co-founder and primary author of Hyman, Phelps & McNamara's FDA Law Blog , Mr. Karst often leads the response to new rules and regulations, sharing his interp...

William A. Goldberg is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Trusts and Estates. William A., 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 William A. is held by other top lawyers in the same geographic and legal practice area.

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

Elizabeth Thomas Dold’s practice focuses on the Internal Revenue Code and related compensation matters, including employment taxes and other reporting and withholding requirements. She covers all types of employee benefits, including qualified plans, IRAs, governmental plans, nonqualified deferred compensation plans, and health and welfare plans. She assists clients in all tax-related aspects of employee benefits including Internal Revenue Service (IRS) filings, compliance audits, desig...

Scott Nolan is a top attorney recognized by Best Lawyers in the practice area(s) of DUI / DWI Defense. Scott, who practices law in Fairfax, Virginia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Scott is held by other top lawyers in the same geographic and legal practice area.

Dara Newman Histed is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Dara Newman, 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 Dara Newman is held by other top lawyers in the same geographic and legal practice area.

Sean Clancy is the team leader of Nixon Peabody’s Tax practice, and a member of the firm’s Public Company Transactions team. He assists clients with a broad range of tax and business planning matters and related tax policy matters. My focus Tax Planning I advise clients on federal tax planning, including assistance in structuring mergers and acquisitions and other transactions. In addition, I counsel private equity funds on domestic and cross-border taxation and corporate finance ...