Joseph S. O'Brien

Rick Blumen represents lead arrangers, lenders, borrowers, private equity firms and underwriters, and has served as counsel to several of the largest U.S. commercial banks and their affiliates, and Fortune 500 companies, in a variety of finance transactions. These transactions include secured and unsecured syndicated credit facilities, private placements, high-yield debt offerings, acquisition financings, recapitalizations, first- and second-lien loans, mezzanine financings and pre-petition w...

Seth Buchwald is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Seth, who practices law in Atlanta, Georgia, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Seth is held by other top lawyers in the same geographic and legal practice area.

Mark C. de St. Aubin is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law, Litigation - Construction and Mediation. Mark C., who practices law in Atlanta, Georgia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark C. is held by other top lawyers in the same geographic and legal practice area.

Deborah B. Hembree is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Deborah B., who practices law in Atlanta, Georgia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Deborah B. is held by other top lawyers in the same geographic and legal practice area.

Leah Petersen is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Leah, who practices law in Atlanta, Georgia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Leah is held by other top lawyers in the same geographic and legal practice area.

Stephen McCullers is an Associate in the firm’s Environmental Practice. Stephen has a diverse environmental practice, assisting clients with complying with complex environmental, health, and safety regulations. Stephen also has expertise with air and water permitting, environmental due diligence and liability, and environmental litigation. Before becoming an attorney, Stephen was a Natural Resources Specialist with the U.S. Army Corps of Engineers. He conducted environmental compliance ...

Louis Barbieri III is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Leveraged Buyouts and Private Equity Law, Mergers and Acquisitions Law and Venture Capital Law. Louis, who practices law in Atlanta, Georgia, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Louis is held by other top lawyers in the same geographic and legal practice area.

M. David Weingarten, Ph.D., Managing Partner of Finnegan’s Atlanta office, helps pharmaceutical, biotechnology, and chemical companies protect their most valuable assets: their innovations. David advises clients on complex patent disputes, post-grant proceedings, patent prosecution, and intellectual property strategies that align with business objectives and drive long-term value. With a practice spanning patent litigation in U.S. district courts, proceedings before the Patent Trial and...

Companies rely on Meaghan Boyd to develop their complex environmental and toxic tort litigation defense strategy. She also guides companies through the hoops of compliance with federal statutes such as CERCLA, the Clean Water Act, and RCRA and their state counterparts. Meaghan is co-chair of Alston & Bird’s Environment, Land Use & Natural Resources Group. She defends companies in complex environmental and toxic tort litigation in federal and state courts. She also routinely coun...

John P. MacMaster is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. John P., who practices law in Atlanta, Georgia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John P. is held by other top lawyers in the same geographic and legal practice area.