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

Contact Me

Login Required

Please login to contact this attorney

Reviews

4.5 / 5

33 Reviews

1,040 Profile Views

Irvin Carroll

Feb 02, 2026

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

Solid experience overall with the law firm of Margaret O. Costello. They know Corporate Law inside and out and gave me great advice. Very helpful and got the job done exactly as they said they would....

Vanessa Bailey

Feb 02, 2026

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

Needed help with Corporate Law and Margaret O. Costello delivered on their promises. They're professional, efficient, and easy to talk to. Good choice for anyone in Georgia looking for high-quality le...

Claudia Quitzon

Feb 02, 2026

Simply amazing representation from Margaret O. Costello's office during my recent legal matter

Honestly, I can't thank Margaret O. Costello enough for everything they've done for me. They really know their stuff when it comes to Corporate Law and it shows in the results. 10/10 would recommend t...

Clifton Ward

Feb 02, 2026

Highly recommend Margaret O. Costello for anyone needing expert Corporate Law help in Georgia

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'...

Jan Luettgen-Stehr

Feb 02, 2026

A very good experience overall with the entire team at Margaret O. Costello's legal practice

I appreciate how Margaret O. Costello handled my case. No fluff, just straight to the point and very effective representation for my Corporate Law matter. They are obviously very experienced and know...