
Milbank‘s growing antitrust practice is increasingly visible on complex, cross-border merger reviews, with the team frequently acting as global coordinating counsel on transactions requiring parallel clearances in the US and Europe. The group pairs merger control with deep bench strength in antitrust litigation, advising on investigations before the DOJ, FTC and European Commission. Energy, pharmaceuticals, healthcare and financial services feature prominently in the team’s recent deal flow. At the helm is a ’dream team’, with Fiona Schaeffer in New York working in tandem with Adam Di Vincenzo in Washington DC. Schaeffer is noted for her experience handling emerging AI and ESG-related issues, while Di Vincenzo regularly represents private equity sponsors and portfolio companies in government merger reviews. DC-based Richard Parker has extensive experience in merger control matters before enforcement agencies and the courts.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Fiona Schaeffer and Adam DiVincenzo are a dream team with broad expertise across a range of industries. They stand out for their creativity in delivering solutions in complex merger review postures. Adam has particular expertise in the energy sector.'
Key clients
- US Steel
- SLB
- SEACOR
- Veritas Capital
- LS Power
- AMSURG
- Colonial Enterprises
- The Blackstone Group
- Strategic Value Partners, LLC
- H&E Equipment Services
Work highlights
Served as antitrust counsel for US Steel in its historic $14.9 billion acquisition by Nippon Steel Corporation.
Served as antitrust counsel for SLB (Schlumberger) in its successful $7.8 billion acquisition of ChampionX, the largest energy services M&A transaction in recent years.
Serving as antitrust counsel to LS Power, a leading development, investment, and operating company, in connection with the $12 billion sale of generation and other assets to NRG Energy Inc.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Fiona Schaeffer; Adam Di Vincenzo

