Tamar Rosenberg is the leader of the firm’s Nonprofit Sector team. She advises nonprofit organizations throughout their lifespan, helping them in myriad ways to comply with the requirements of their tax-exempt and nonprofit status. She also supports high net worth families and businesses with their strategic philanthropy and business dealings with nonprofits.
With over 20 years of experience helping hundreds of clients address a wide variety of challenging circumstances, Tamar focuses on developing practical solutions to help clients reduce risk, protect their interests, remain resilient through challenging situations and deliver on their mission and organizational goals.
Tamar’s work includes:
- Nonprofit formation
- Structuring relationships between nonprofits and for-profits
- Philanthropy, including fundraising and grantmaking – from both the charity and donor angles
- Corporate governance, including best practices, policies, conflicts of interest and disputes
- Industry-specific nonprofit compliance
- Compliance and operations, including contracts, executive compensation, disaster relief, unrelated business income tax and international activity
- IRS audits
- Investigations and litigation
- Transactions and restructuring, including strategic alliances and bankruptcy
Tamar has extensive experience advising clients across many sectors, including:
- Hospitals, health plans, medical schools and research institutes
- Family, company and community foundations
- Museums
- Educational institutions
- Trade associations
- Religious organizations
- Numerous other charities and mission-based organizations
Tamar has been individually recognized by Legal 500—as both a Recommended Lawyer – Tax: Not-for-profit (2019-2025) and an “Elite” Leading Partner (2024-2025)—and by Best Lawyers in America (2023-2026).