One of the Northeast’s most recognized law firms has made a significant move that signals continued growth and consolidation across the regional legal landscape. Mandelbaum Barrett PC has formally welcomed the full legal team of Ivey, Barnum & O’Mara LLC into its expanding practice, adding 24 seasoned attorneys and professional staff members to its roster and extending its reach deeper into Connecticut and the broader tri-state market.
The strategic collaboration brings together two firms known for long-standing reputations, deep community ties, and a shared commitment to client-centered legal service. Ivey, Barnum & O’Mara, based in Greenwich, has served individuals, families, entrepreneurs, and institutions for generations, earning recognition for its work in estate planning, trust and probate administration, real estate law, litigation, corporate counseling, and private client services.
By integrating the IBO team into its platform, Mandelbaum Barrett significantly expands its capabilities across key practice areas while reinforcing its presence in high-value legal corridors that connect New Jersey, New York, and Connecticut. The move positions the firm to better serve clients with cross-border legal needs, complex asset structures, and multi-jurisdictional business operations.
Firm leadership emphasized that the collaboration is rooted in more than growth metrics. It reflects a deliberate strategy to unite professionals who share similar philosophies around client advocacy, legal excellence, and long-term relationship building. The incoming attorneys are expected to continue serving their established client base while gaining access to Mandelbaum Barrett’s broader legal resources, technology platforms, and multidisciplinary teams.
For clients, the integration offers immediate benefits. Individuals and businesses will now have streamlined access to a larger network of legal professionals capable of handling matters that span litigation, corporate law, tax strategy, intellectual property, employment law, healthcare compliance, real estate transactions, and private wealth planning. The combined firm structure is designed to deliver more comprehensive representation without sacrificing the personal service model that both firms are known for.
The addition of the Greenwich-based team also underscores Mandelbaum Barrett’s expanding influence throughout the region’s legal and business communities. As legal needs grow more complex and interconnected across state lines, firms that can offer unified, multi-disciplinary solutions are increasingly in demand. This collaboration directly addresses that demand by strengthening the firm’s infrastructure and expanding its bench of specialized talent.
The development has also drawn attention across the legal sector as an example of how established firms are evolving to meet modern client expectations—combining local expertise with large-firm resources in a way that preserves personal engagement while enhancing service depth.
For continued coverage of legal developments, public safety, and regulatory updates shaping the Garden State and surrounding regions, readers can find more reporting in Sunset Daily’s Law & Order section, where major legal moves and policy changes impacting New Jersey are closely tracked.
As Mandelbaum Barrett continues to expand its footprint, this latest collaboration represents a notable chapter in the firm’s long-term growth strategy, positioning it as an increasingly influential legal force across New Jersey, Connecticut, and the greater Northeast corridor.




