US Accounting Firm Sorren is Latest to Add Affiliated Law Firm

Private equity-backed Sorren said that lawyers at Sorren Law will handle transactional, succession planning, asset protection, estate planning and other legal work for businesses, investors and ​individuals. Sorren Law is a rebranded version of Mansfield & Mayo, a small ​law firm based in Nevada and Idaho.

Big Four accounting firm KPMG launched ⁠a subsidiary law firm, KPMG Law US, in February 2025 after gaining approval ​from the top court in Arizona, where a program allows people who aren’t ​lawyers to have an economic interest in law firms. Accounting and advisory firm Aprio also launched a subsidiary law firm last year, Aprio Legal, under the Arizona program.

The Sorren firm has ​a different setup. Sorren Law is owned by lawyers, not by Meridian, Idaho-based ​accounting and advisory firm Sorren. The accounting firm and the lawyers are co-invested in Sorren Legal ‌Support, ⁠a management services organization that is a subsidiary of Sorren Inc, said Sorren Inc CEO Josh Tyree. The MSO provides administration and other back-end support services to the law firm, which will benefit from Sorren’s investments in technology and other areas, ​he said.

MSOs, used by ​the healthcare and ⁠accounting sectors for years, have generated interest in the legal industry as a way to split up the practice of ​law and the non-legal services and assets that support a ​law firm. ⁠An MSO can allow outside investment in a firm’s business without violating professional ethics rules.

Sorren Law has been hiring lawyers and plans to expand its services into new ⁠markets, ​Tyree said.

Thirteen accounting firms came together last year ​to form Sorren, which is backed by New York-based private equity firm DFW Capital Partners. DFW did ​not immediately respond to a request for comment.