Leslie Corwin, an expert on partnership law, is leaving Greenberg Traurig to join Blank Rome as an equity partner.

Corwin, in an interview with the New York Law Journal, said the size of Greenberg, which has about 1,700 lawyers firm wide, had become an issue. Corwin has served as a principal shareholder at Greenberg since 1998.

“The size Greenberg is now, it creates more conflicts, especially for the things I do,” such as law firm representation, he said. “To me, it’s déjà vu where Blank Rome is now the size Greenberg was 16 years ago.”

Corwin said he intends to help the 470-attorney Blank Rome grow its Florida and California offices, where he has a significant portion of his practice as well as some family.

Corwin, 66, said the departure from Greenberg was amicable and said both Blank Rome and Greenberg are great firms.

Corwin represents international and national law firms and accounting firms, broker-dealers, investment banks, hedge funds and real estate developers in disputes, mergers and acquisitions, liquidations and bankruptcies.

“Les has handled more partnership disputes for law firms and accounting firms than any other lawyer, and we are thrilled that he is bringing his unique practice to Blank Rome,” said Alan Hoffman, chairman and managing partner.

Another Greenberg shareholder, Caroline Heller, who focuses on commercial litigation and business disputes, is also joining Blank Rome as a partner.