People

Frank P. Steinherr

Socio

New York – One Vanderbilt Avenue

Areas of focus

Private equity investments

Leveraged buyouts and strategic mergers

Joint ventures, restructurings, and recapitalizations

Take-private and carve-out transactions

Private and public mergers and acquisitions

Frank Steinherr is a nationally recognized mergers and acquisitions lawyer whose practice centers on private equity investments.

He represents private equity sponsors across the full investment lifecycle, advising on acquisitions, portfolio company matters and exits.

His experience spans private and public M&A, leveraged buyouts, strategic mergers, joint ventures, restructurings, recapitalizations, take-private deals, and carve-out transactions.

In addition to his client work, he serves as global co-head of McDermott’s Private Equity Practice Group, sits on the firm-wide Management Committee and is co-Managing Partner of the New York office.

Ranked in

Ranked in

Legal 500 US 2025

Ranked in

Ranked in

New York Law Journal 2024

Ranked in

Ranked in

Legal 500 US 2024

Results

A&M Capital

  • A&M Capital Partners in its sale of Med-Metrix, LLC, a provider of end-to-end revenue cycle management and business intelligence solutions for health systems and physician groups
  • A&M Capital Partners in its acquisition of Surgical Affiliates Management Group, a provider of surgicalist and acute care teams delivering trauma, emergency general surgery and related hospital-based services
  • A&M Capital Advisors in its acquisition of CT Clinical Partners, Inc. d/b/a Turnbridge, a provider of residential and outpatient treatment for adolescents and young adults with mental health disorders

Biospring

  • Biospring Partners in its minority investment in CenExel, a clinical research site network serving the life sciences industry
  • Biospring Partners in its acquisition of interests in Cedar Health Research, a clinical trial network focused on underserved patient populations

York Capital

  • York Capital in its acquisition of Precise Medical Solutions LLC, a medical aesthetics and wellness provider offering weight loss and cosmetic treatment services
  • York Capital in its acquisition of NMA Super Holdings, LLC (Neuromonitoring Associates), a provider of intraoperative neuromonitoring services focused on patient safety during surgery
Recognitions
  • Legal 500 US, Recommended, 2025
  • Legal 500 US, Recommended, 2024
  • New York Law Journal, Office Managing Partner of the Year Finalist, 2024
  • Legal 500 US, Recommended, 2023
Capabilities and Industries
Regional Markets
Community
  • Global co-head, Private Equity Practice Group
  • Co-Managing Partner, New York office
  • McDermott Will & Schulte Management Committee, member
Credentials
Education
  • New York University School of Law, LLM
  • University of Oxford, LLB
  • Brunel University of London, MA
  • College of William & Mary, BA
Admissions
  • New York