Nelson Mullins Riley & Scarborough of Columbia, S.C., is merging with Boston intellectual property boutique Lahive & Cockfield. The move will expand services for clients of both firms, increase the combined intellectual property team to more than 70 attorneys and technical specialists, and double the size of the Nelson Mullins Boston office.

Lahive’s 18 attorneys and five technical professionals “wanted to grow our practice and expand our core specialty areas,” said Lahive’s executive committee chairwoman, Amy Mandragouras, in a written statement.