Several of the United States' most prominent law firms are exploring the sale of minority stakes to private equity groups, marking a significant shift in the traditional ownership structures of the legal industry.

The firms are seeking to adopt the multi-service office (MSO) model, which allows for capital investment and operational scaling without violating professional conduct rules that prohibit non-lawyer ownership of law practices.

Paul Weiss, Quinn Emanuel Urquhart & Sullivan, and Proskauer Rose are among the firms that have held conversations regarding such transactions, according to reports from the Australian Financial Review and RTE Business.

The discussions highlight a growing appetite among elite legal practices to leverage private capital for expansion, technology investment, and global reach, while navigating the strict ethical guidelines that govern the profession.

The move reflects a broader trend in the professional services sector, where firms are increasingly looking beyond traditional partnership models to secure funding and enhance competitiveness.

By selling minority stakes, these firms aim to access the financial resources and operational expertise of private equity investors without ceding control to non-lawyers, thus maintaining compliance with state bar regulations.