Sheppard’s Nonprofit Team is recognized for advising tax-exempt organizations across their full life cycle, from formation and exemption to complex transactions, restructurings, and dissolution. The team is frequently engaged on sophisticated, high-stakes matters, including large-scale joint ventures, mergers and acquisitions, and for-profit/nonprofit conversions, particularly within the healthcare sector. Drawing on deep industry knowledge, the group advises hospitals, academic medical centers, research institutes, foundations, and cultural institutions on governance, compliance, and transactional strategy, delivering pragmatic guidance tailored to mission-driven objectives. Tamar Rosenberg focuses exclusively on nonprofit law, advising clients on federal tax-exemption requirements, corporate governance, and charitable regulation. Her practice spans both healthcare and non-healthcare nonprofits, encompassing day-to-day compliance, complex transactions, and support in bankruptcy and litigation matters.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Sheppard’s nonprofit practice, and Jay Gerzog in particular, are among the best in the business.'
- 'They are our go-to resource for everything nonprofit-related, and we regularly refer them to clients for a wide range of work in the sector, including governance matters and the structuring of complex transactions involving nonprofit entities.'
- 'Jay Gerzog is a fantastic lawyer and a creative counselor in the healthcare and nonprofit sectors.'
- 'The team at Sheppard is professional, smart, and kind.'
- 'Everyone on the team is curious and takes the time to understand our priorities and objectives, even under tight deadlines, and they consistently help us understand the situation so we can proceed efficiently in furtherance of our mission.'
- 'We primarily use Sheppard Mullin for healthcare legal and contract matters, organizational and governance matters, nonprofit and tax matters, cyber matters, and real estate matters. The firm has strong breadth and depth in each of these areas and is consistently well versed in the matters we retain them for.'
- 'They are always responsive to our needs on an expedited basis.'
- 'They take time to fully understand the situation to ensure they can do the work, and when they can, they consistently exceed expectations. When deadlines are tight, they mobilize all available resources to meet them.'
- 'Outstanding attorneys include Jay Gerzog, Stephanie Marcantonio, Eric Altman, and Tamar Rosenberg.'
- 'Tamar Rosenberg goes above and beyond.'
Key clients
- Archdiocese of New York
- Beacon Health System
- Blue Shield of California
- Catholic Health Services of Long Island
- Duke University and Duke University Health System
- U.S.S. Midway Museum
- City of El Centro and El Centro Regional Medical Center
- EmblemHealth
- Future Cryonics Foundation
- Maimonides Medical Center
- MemorialCare Health System
- Montefiore Medicine Academic Health Center and Albert Einstein College of Medicine
- Mount Sinai Health System
- National Asian American Coalition
- New York City Health + Hospitals Corporation & MetroPlus
- Navy SEAL Museum
- Pollyanna, Inc.
- Razom for Ukraine
- Roman Catholic Diocese of Orange County
- San Diego Regional Policy and Innovation Center
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Tamar Rosenberg
Other key lawyers
Jay Gerzog; Stephanie Marcantonio; Eric Altman