Boston-based real estate law firm Ligris + Associates is losing its founder, Kosta Ligris, to a pair of proptech startups he started.

Ligris had been CEO and managing partner since the firm’s founding in 2004. Ligris + Associates concentrates on residential and commercial real estate transactions, and Ligris himself represented buyers, sellers and developers in the acquisition, sale and development of residential and commercial real estate. He also advised investors, banks and developers on real estate matters. His LinkedIn page lists him as founder of proptech firm Escrow Mint.

“After obtaining my MBA from MIT’s Sloan School of Management in 2018, I immersed myself in the innovation ecosystem, especially as it relates to the proptech industry. I am now the CEO and co-founder of two proptech startups, and I believe these companies and their technology have enormous potential to change the real estate industry as we know it,” Ligris said in a statement. “Ligris has always been at the forefront of technology in delivering legal, title and settlement services and the next chapter of my career is to bring transformational change to the entire industry. It is an exciting time to be a part of the future of real estate and even more exciting to be at the forefront of the revolution.”

Ligris’ Chief Development Officer Nikolaos Ligris and Chief Operating Officer Christos Viores will become co-managing partners to lead day-to-day operations, including lateral recruitment, practice management, and business and professional development, effective June 1. Kosta Ligris will remain as a firm board member and advisor.