Back in April, we wondered about the departure from Sullivan & Cromwell of John O’Brien, a highly regarded and well-liked corporate partner who focused on M&A work. This development captured our interest because it’s unusual for lawyers to leave the (highly lucrative) partnership of a top firm like S&C.
When partners leave a place like Sullivan & Cromwell, there’s often a story behind the departure. E.g., Carlos Spinelli-Noseda (partner left S&C after billing clients and firm for more than $500,000 in fraudulent travel and entertainment expenses).
In addition, word on the street was that O’Brien was escorted from the building by security personnel. Partners are being asked to leave their firms with increasing frequency during the recession — but they’re not usually walked out by muscle.
So we decided to do a little digging.
Continue reading “Why Did John O’Brien Leave Sullivan & Cromwell?”





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