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

1,041 Profile Views

Darla Kreiger

Feb 02, 2026

Top notch experts in Atlanta - Margaret O. Costello is by far the best lawyer I've ever had

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...

Marlene Gutkowski

Feb 02, 2026

The absolute best in Atlanta for Corporate Law - and I mean that from the bottom of my heart

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'...

Nathaniel Konopelski

Feb 02, 2026

Reliable lawyer you can count on - Margaret O. Costello provided excellent service throughout

I've worked with a few lawyers in Atlanta over the years, but Margaret O. Costello stands out for their honesty and thoroughness. They were clear about the process and kept me updated at all times. I...