Grassi enhances its New York operations by acquiring Hoffman Mulligan, expanding expertise in tax advisory for high-net-worth clients.

## Grassi Enhances Its New York Footprint with Strategic Acquisition
Grassi, a prominent player among the top 60 accounting firms in the United States, has fortified its position in New York by acquiring the CPA firm Hoffman Mulligan, effective August 1. This acquisition not only amplifies Grassi’s presence in a fiercely competitive market but also enhances its expertise in tax advisory, targeting high-net-worth clients and closely held businesses.
While the financial details of this deal remain undisclosed, the integration marks a crucial step for Grassi. The seasoned Hoffman Mulligan team—comprising partners Don Hoffman and Janet Mulligan, along with 20 skilled professionals—has officially relocated to Grassi’s headquarters on Madison Avenue.
What’s particularly noteworthy here is that this acquisition represents Grassi's first merger in 2026, coming on the heels of its previous acquisition of OnePoint Franchise Accounting back in November 2025. This suggests a strategic intent to ramp up growth activities in a year that, so far, has been relatively quiet for M&A within the accounting sector.
Beyond expanding its workforce, Grassi views this merger as a means to strengthen its service offerings. The firm asserts that bringing in Hoffman Mulligan allows them to provide specialized tax planning and advisory solutions—a critical consideration for wealthy individuals and businesses navigating an increasingly complex financial landscape.
Louis Grassi, founder and CEO, expressed confidence in this strategic move, emphasizing the alignment of values and service philosophies between both firms. “Hoffman Mulligan brings a strong reputation for client service and deep technical expertise that closely aligns with our approach,” he stated. This acquisition not only signifies an expansion of capabilities but also underscores Grassi's commitment to maintaining high-touch client relationships within an independent, employee-owned structure.
With a history spanning over 45 years, Hoffman Mulligan has established itself as a reputable full-service firm. It evolved from Tanton & Co. after Donald Hoffman and Janet Mulligan took over leadership in 2013. This acquisition should serve both firms well, as they navigate the complexities of client services in today's competitive market.
Ultimately, Grassi’s integration of Hoffman Mulligan illustrates its dedication to strategic expansion through talent investment, even amidst ongoing uncertainty in the broader economic landscape. The implications of this merger resonate with any firm looking to bolster client services and competitiveness in a rapidly changing environment.
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