Sax acquires Scheidel, Sullivan & Lanni and Sierra Financial Advisors

Sax, a Top 75 Firm based in Parsippany, New Jersey, has acquired Scheidel, Sullivan & Lanni CPA LLC, based in Ramsey, New Jersey, while its subsidiary, Sax Wealth Advisors, has acquired the affiliated Sierra Financial Advisors LLC, effective Jan. 4, 2026.

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The deal boosts Sax’s tax, accounting, advisory and wealth management services. “This acquisition reflects our commitment to strategic growth while upholding our values of respect, integrity, commitment, excellence, and stewardship,” said Sax CEO Joseph Damiano in a statement Wednesday. “Both SSL and Sierra have built strong legacies rooted in trusted relationships and professional excellence. Their cultures align beautifully with ours, and we are excited to welcome their teams to the Sax family.”

Financial terms of the deal were not disclosed. Sax ranked No. 66 on Accounting Today‘s 2025 list of the Top 100 Firms, with $109 million in annual revenue. This transaction brings the headcount at Sax to 73 partners and nearly 400 team members, and a national and international presence, including offices all along the East Coast and India, supported by a remote workforce spanning 27 U.S. states. This is the third M&A deal since Sax received a minority investment from the private equity firm Cobepa last July. The preceding two deals include the acquisition of Maddaloni, Nydick & Keenan in Florham Park, New Jersey, and SCL Consulting in Columbia, Maryland. Sax also acquired Sewald & Anastasia in Parsippany, New Jersey, last year prior to taking PE funding. 

By acquiring Sierra Financial Advisors, Sax Wealth Advisors is expanding its wealth management footprint to approximately 20 wealth advisors and over $4.5 billion in assets under management, including about $1 billion in retirement plan assets, as of Dec. 30, 2025. 

“This transaction ensures alignment with a firm that shares our culture, values, and dedication to clients,” said SSL and Sierra leaders Timothy Sullivan, David Scheidel and Michael Lanni Jr., in a joint statement. “By joining Sax, we are providing our clients and team members with access to greater resources, expanded expertise and increased opportunities — while maintaining continuity and the personalized service our clients rely on.”