Rochester, New York, January 27, 2026 – Harter Secrest & Emery LLP, a full-service business law firm with offices throughout New York, is pleased to announce that Mark Hoenig has joined the firm as senior counsel following a distinguished career as a tax partner at Weil, Gotshal & Manges in New York City. With decades of experience in nonprofit and corporate taxation, Hoenig brings exceptional depth to Harter Secrest & Emery’s Nonprofit and Tax practices.
“We are thrilled to welcome Mark to the firm,” said Harter Secrest & Emery Managing Partner Craig S. Wittlin. “Mark’s insight, judgment, and leadership are widely respected in both the nonprofit and tax law fields. His passion for supporting mission-driven organizations aligns perfectly with our tradition of delivering sophisticated, solutions-focused counsel to nonprofit organizations in our communities. Moreover, Mark’s decades of exceptional tax experience enhance our ability to serve our corporate clients.”
Hoenig is widely recognized for his leadership in the nonprofit sector, where his genuine passion for assisting nonprofit organizations inspires his practical, results-driven approach. He counsels nonprofit clients through every part of their life-cycle, from formation and organizational structure, governance, tax-exempt status, operational issues, transactions, ventures and other commercial transactions. Hoenig’s comprehensive understanding of the regulatory and legal landscape governing nonprofit organizations, coupled with the experience, wisdom and judgment developed over decades, has earned him the trust of public charities, trade associations, universities, hospitals, foundations, and other mission-driven institutions.
“Nonprofit work is where my heart is—helping noble people do noble things,” said Hoenig. “Harter Secrest & Emery provides the talent and support that will allow me to continue doing that work at the highest level.”
In addition to his extensive nonprofit experience, Hoenig brings best-in-class credentials in the area of taxation of business and commercial transactions. Having structured and executed several high-profile M&A and restructuring transactions, Hoenig is highly regarded for his leadership and experience in the taxation of corporate mergers and acquisitions, dispositions, reorganizations, and workouts.
A respected thought leader on nonprofit and tax law, Hoenig is the author of two annually updated and published chapter treaties by PLI PLUS—“Partnering with Nonprofits: Navigating a Tax Law Minefield” and “Trafficking in Net Operating Losses: What’s So Bad? An Assessment of Net Operating Loss Carryover Limitations.”
During his more than 40-year tenure at Weil Gotshal & Manages, Hoenig chaired the firm’s nonprofit practice for more than 20 years and spearheaded the firm’s annual events for the nonprofit sector.
Hoenig was named to the inaugural Lawdragon “500 Leading Global Tax Lawyers” list in 2025, recognized as a “Bankruptcy Tax Specialist” by Turnarounds & Workouts magazine, named to Super Lawyers since 2013 and received the New York Law Journal “Lawyers Who Lead by Example” award in 2014. He earned an LL.M. and J.D. from New York University of Law, and a B.A. from Yeshiva University.
Harter Secrest & Emery’s Nonprofit Organizations team advises clients through every stage of their life cycle – including fiscal sponsorship, entity formation, governance, building partnerships, and combining organizations. The firm also advises clients on everyday operational issues relating to service recipients, general employment, real estate, fundraising, financing, investments, transactions, litigation, regulatory compliance, and other matters. The firm represents a full spectrum of nonprofit, tax-exempt, philanthropic, and religious organizations, such as health systems and hospitals, human service providers, educational institutions, foundations, trade, industry and professional associations, cultural organizations, church groups, affordable housing projects, and social welfare agencies.
Harter Secrest & Emery’s tax attorneys advise clients ranging from local businesses to publicly traded corporations on a full spectrum of tax matters. Leveraging deep understanding of legislative and regulatory frameworks, the team provides strategic guidance on emerging tax developments, designs and implements effective tax strategies and represents clients in disputes with tax authorities.
About Harter Secrest & Emery LLP
Harter Secrest & Emery LLP is a full-service business law firm with attorneys throughout New York representing clients ranging from individuals and family-owned businesses to Fortune 100 companies and major regional institutions. With offices in Rochester, Buffalo, Albany, Corning, and New York City, New York, the firm and its attorneys are consistently recognized by the industry’s leading law firm and attorney ranking programs, including Chambers and Partners, Best Law Firms® and The Best Lawyers in America®.