Listen to this articleThe basics:
- Mandelbaum Barrett adds all 24 employees from Greenwich-based Ivey, Barnum & O’Mara
- Expansion establishes firm’s first Connecticut presence
- Strengthens capabilities in real estate, trusts and estates, litigation, franchise law
Mandelbaum Barrett PC continues to expand its team and footprint, following the addition of attorneys and staff from Ivey, Barnum & O’Mara LLC.
The 95-year-old full-service Roseland law firm announced Dec. 22 all 24 employees of the Greenwich, Conn., firm will join effective Jan. 1, 2026.
It addition to expanding Mandelbaum Barrett’s reach into New England, the firm said the move also brings new resources to IBO’s clients. On both ends, it strengthens capabilities across several practice areas, such as real estate, trusts and estates, franchise law, litigation and personal injury.
In October, Mandelbaum Barrett expanded closer to home, adding Hudson County-based Linda Hockstein as a partner in its real estate practice group.
“This strategic expansion of Mandelbaum Barrett PC into Connecticut and the subsequent growth of our practice now allow us to serve both corporate and individual clients in the region with even greater depth, agility, and personalized service,” commented William Barrett, CEO, Mandelbaum Barrett PC.
Mandelbaum Barrett described IBO, established in 1950, as Greenwich’s largest law firm.
Constitution State cred
“Our firm was built in Greenwich, and our roots here in Fairfield County run deep,” said Ivey, Barnum & O’Mara partner and Management Committee Member Stephen Walko. This partnership represents an opportunity not only to expand our capabilities and resources for our growing client base here, but also to preserve everything that has defined our practice locally.
“We are proud to take this next step with a firm that appreciates the importance of community grounded in places like Greenwich.”
$30 million
Earlier this year, Mandelbaum Barrett PC reported a record $30 million in settlements and judgements secured by its litigation team in Q1.
Read more here.
Mandelbaum Barrett also highlighted Ivey, Barnum & O’Mara attorneys for their community leadership. According to the firm, incoming attorneys’ previous experience includes time in the U.S. Congress to serving as probate judge and president of the Connecticut Bar Association.
The New Jersey firm also noted Fairfield County, Conn., houses many leading financial and professional services firms and ranks among the wealthiest U.S. counties. Additionally, it said the area boasts a growing information services sector.
“The addition of these attorneys to Mandelbaum Barrett marks a significant milestone in our firm’s strategic and steady growth from a small practice founded in 1930 with just one attorney to now 150 attorneys beginning in 2026,” said Chairman Barry Mandelbaum, whose father, Irving, founded the firm in Newark. “It is certainly an exciting way to start our 96th year and testimony to both the firm’s impact and the culture we have built over the years.”
According to IBO partner and Management Committee member Steven Steinmetz, the firm’s attorneys are excited to join “and bring even more value to our clients.”
Beyond New Jersey and now Connecticut, Mandelbaum Barrett also has offices in New York, Florida and Colorado.
