Rosenberg & Estis, P.C. Strengthens Commercial Litigation Capabilities With Two Key Hires

NEW YORK, September 16, 2025 – Rosenberg & Estis, P.C. (R&E), one of New York City’s preeminent full-service real estate law firms, announced the addition of leading attorneys Alexander H. Shapiro, as Member, and Joseph J. Kammerman, as Counsel, to further develop the firm’s rapidly growing general commercial litigation practice.

 

Rosenberg & Estis is recognized for delivering trusted counsel to the most prominent real estate owners, investors and managers for the past 50 years. With these additions expanding R&E’s commercial litigation practice, R&E is uniquely situated to advocate in the most complex, high-stakes matters with market-leading precision and depth of insight, while preserving the agility and focus of its boutique model.

 

“Real estate law has evolved into an increasingly complex and multifaceted field, shaped by heightened regulatory oversight, sophisticated financial structures, and the growing intersection of property, corporate, and commercial interests,” said Michael E. Lefkowitz, Managing Member of Rosenberg & Estis, P.C. “Clients require counsel capable of navigating disputes at the highest level and, with proven track records in handling complex commercial disputes, Alexander and Joseph are valuable additions to the firm as we continue to evolve with the real estate landscape.”

Shapiro and Kammerman join R&E’s other litigators, bringing with them their deep experience and expertise in complex commercial litigation, including matters involving breach of contract, shareholder and partnership disputes and securities fraud, intellectual property, discovery in aid of foreign litigation (Section 1782), compliance and policy development, and white-collar investigations and fraud, thus broadening the breadth of R&E’s capabilities in these key litigation areas.

 

A seasoned trial and appellate advocate with decades of experience in private practice, government service, and corporate leadership, Shapiro has a proven track record of success in handling complex commercial disputes, white collar defense, and regulatory investigations in state and federal forums across the country. His distinguished background includes serving as an Assistant U.S. Attorney in the Southern District of New York and holding senior leadership roles at two Fortune 500 companies. Shapiro joined R&E from the boutique litigation firm Ford O’Brien Landy, LLP.

Shapiro holds a B.A. from Yale University, an M.Litt. from Cambridge University and a J.D. from Yale Law School. He is admitted to practice in New York and the U.S. District Court for the Southern District of New York.

Joseph J. Kammerman brings nearly a decade of experience as a litigator, previously practicing at Milbank LLP, where he was involved in high-profile commercial and white collar matters on behalf of private and public institutions across the country. Kammerman joined R&E to further expand his practice in the real estate industry while continuing to handle a wide range of the firm’s clients’ most complex and pressing commercial matters.

Kammerman is a graduate of Benjamin N. Cardozo School of Law, J.D., and holds a B.A. in Economics and Political Science from Rutgers University. He is admitted to practice in New York and the U.S. District Court for the Southern and Eastern Districts of New York.

Said Shapiro, “Rosenberg & Estis has a longstanding reputation for excellence, and I am thrilled to be joining its exceptional team to help further develop its burgeoning complex commercial litigation practice. The firm’s expansion of its capabilities in this practice group reflects a commitment to handling sophisticated, high-stakes commercial matters with the same precision and insight that have defined its practice for 50 years. I look forward to delivering sound, thoughtful, and commercially-attuned advice, counsel and advocacy to a wide spectrum of clients.”

 

R&E’s growth in litigation complements its established strengths in real estate transactions, tax, zoning, and regulatory counsel. R&E continues to expand in size and the scope of work it handles. Its recent success in attracting top-tier talent reflects a long-standing commitment to cultivating a positive and supportive working environment. The firm has earned multiple ‘Best Places to Work’ honors recognizing its employee-first culture that supports work-life balance and enables its professionals to thrive.

 

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About Rosenberg & Estis, P.C.

 

Founded in 1975, Rosenberg & Estis, P.C. is widely recognized as one of New York City’s pre-eminent real estate law firms. R&E provides full-service representation and advice in every aspect of real estate operations, from performing due diligence and evaluating financing, to handling joint ventures, acquisitions and leasing, construction and design team agreements, property tax exemptions and abatements, land use and zoning matters, Real Property Income & Expense (RPIE) filings, real estate tax certiorari, co-op and condo offering plan filings and board representation, distressed situations workouts, foreclosures and bankruptcies, trust and estate planning. R&E has also long provided premier representation in the disputes and litigations arising in the region’s real estate industry, and its growing practice services a broader range of sophisticated commercial matters for its clients as well. R&E’s wealth of experience in New York real estate makes it the ideal partner for owners, developers, not-for-profit corporations, educational institutions, sponsors, equity investors and lenders in both real estate transactions and in all court venues.