David A. O'Neil

Frank G. Lamancusa is a top attorney recognized by Best Lawyers in the practice area(s) of Communications Law. Frank G., 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 Frank G. is held by other top lawyers in the same geographic and legal practice area.

Practice Focus and Memberships Mr. Trombly is a civil trial attorney whose practice is limited to catastrophic injury and wrongful death litigation in state and federal courts. Licensed in the District of Columbia and in Maryland, he is ranked AV (the highest rating for legal ability and ethical standards) by Martindale Hubbell, the oldest organization in the United States involved in peer review evaluations of attorneys; and also has a 10/10 rating with AVVO. Over the years, Mr. Trombly has ...

Carolé C. Krogmann is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Family Law Mediation. Carolé C., who practices law in McLean, Virginia, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carolé C. is held by other top lawyers in the same geographic and legal practice area.

David C. Silver is a partner in the law firm of Holland & Knight. He practices in the areas of real estate acquisition, development, financing and commercial leasing. His practice includes the representation of large developers, pension funds and institutional owners, as well as large corporations in connection with their real estate activities in the Washington, D.C., metropolitan area and nationally. This representation includes the buying, selling, development, financing and/or leasing...

John Brownlee is chair of Holland & Knight's National White Collar Defense and Investigations Team and is a member of the firm's Directors Committee. Mr. Brownlee's areas of focus include white collar defense and securities enforcement — including Grand Jury and Inspector General investigations, and investigations involving the Foreign Corrupt Practices Act (FCPA), International Traffic in Arms Regulations (ITAR), False Claims Act, Food and Drug Administration regulations, complianc...

Mitch Rapaport is a partner in the firm focusing in tax issues related to public finance and infrastructure finance transactions. During his 30 years in practice, Mr. Rapaport has participated in a wide variety of tax-exempt financings, with an emphasis on public-private partnership transactions and other project financings. Mr. Rapaport has worked on numerous public power financings; stadium and convention center transactions; and education, infrastructure and other industrial projects. What...

Through his years of experience representing companies of all sizes at a large international law firm, TJ Wilkinson developed a keen business acumen that helps him view transactions holistically, allowing him to guide clients’ day-to-day decisions from a broad perspective and promote the overall financial health of their enterprise. Working with clients across industries, ranging from startups to mature businesses, TJ applies his depth of knowledge in taxation and his comprehensive busi...

Daniel S. Singer’s practice has primarily focused on prosecuting catastrophic injury and wrongful death cases in the District of Columbia and Maryland. Over the past several years, he has assisted many families in obtaining significant compensation after their loved ones suffered serious injuries as a result of car wrecks, dangerous walking surfaces, trucking collisions, or medical malpractice. Dan is an active member of the Washington, D.C. legal community. In 2015, he was elected to t...

Janel Quinn is a top attorney recognized by Best Lawyers in the practice area(s) of Qui Tam Law. Janel, 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 Janel is held by other top lawyers in the same geographic and legal practice area.

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.