Margaret O. Costello

4.5 (33 reviews )

Atlanta Georgia United States

Corporate Law Mergers and Acquisitions Law

Recognized in Ones to Watch since 2023

404-873-8500 Website

About Margaret

Margaret O. Costello is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law.Margaret O., 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 Margaret O. is held by other top lawyers in the same geographic and legal practice area.

Margaret O. Costello is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law.

Margaret O., 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 Margaret O. is held by other top lawyers in the same geographic and legal practice area.

Practice Areas

Corporate Law

Mergers and Acquisitions Law

Education

Tulane University

Awards & Recognition

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Reviews

4.5 / 5

33 Reviews

1,039 Profile Views

Spencer Rippin

Feb 02, 2026

Excellent legal representation provided by Margaret O. Costello for my Corporate Law case

Super helpful and professional staff at Margaret O. Costello's office. Thanks again for everything you did for me! It was a long journey, but you made it much easier with your constant support and leg...

Randolph Treutel

Feb 02, 2026

Five stars for the incredible team at Margaret O. Costello in Atlanta - they are amazing

Sheri Hauck

Feb 02, 2026

So happy with the results of my case thanks to the hard work of Margaret O. Costello and staff

Short and sweet: Margaret O. Costello is the real deal and a true professional in the field of Corporate Law. If you're in Atlanta and need help with your legal issues, call them immediately. You won'...

Nicolas Lowe

Feb 02, 2026

Many thanks to Margaret O. Costello for the hard work and dedication to my legal matter

Really glad I found Margaret O. Costello for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If you're...

Nick Larkin

Feb 02, 2026

Many thanks to Margaret O. Costello for the hard work and dedication to my legal matter

If you need a Corporate Law lawyer, Margaret O. Costello is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my case. I felt...