Margaret O. Costello
Associate
Suite 2100
Biography
Maggie is an associate in the Corporate & Finance practice group, a member of the Private Equity practice, and a member of the Economic Development & Public Finance industry team. Her practice focuses on representing private equity funds and private and public companies in a variety of transactional matters, including mergers and acquisitions, joint ventures, private offerings, and commercial transactions.
In addition to transactional matters, Maggie has experience counseling clients on corporate governance and operational matters, entity selection, and formation. She also has experience assisting clients in securing economic development tax incentives and grants from various state and local agencies.
Maggie graduated with honors from Tulane University School of Law, receiving a Juris Doctor. She also graduated from Tulane University A.B. Freeman School of Business, where she received a Master of Business Administration.
Experience
Credentials
- Tulane University School of Law, Juris Doctor,magna cum laude
- Order of the Coif
- Louisiana State Bar Association, Corporate and Business Law Section Award
- CALI Award in Business Reorganization & Bankruptcy Procedure
- Tulane University A.B. Freeman School of Business, Master of Business Administration
- Georgia State University, Bachelor of Arts – Sociology and Political Science,cum laude
- State of Georgia
- American Bar Association
- Atlanta Bar Association
Recognition
- Best Lawyers: Ones to Watch in America®, Corporate Law, Mergers and Acquisitions Law, 2023-25
News & Insights
- NewsAGG Increases Number of Attorneys Recognized in 2025 Edition of The Best Lawyers in America® With Four Named “Lawyer of the Year”August 15, 2024 | Rankings & Recognition | News Releases | Arnall Golden Gregory LLP
- NewsAGG Represents Old Edwards Hospitality Group in Sale to the Whitley FamilyJuly 3, 2024 | News Releases | Arnall Golden Gregory LLP
- NewsAGG Increases Number of Attorneys Recognized in 2024 Edition of The Best Lawyers in America® With Three Named “Lawyer of the Year”August 17, 2023 | Rankings & Recognition | News Releases | Arnall Golden Gregory LLP