The mother of TransPerfect Global co-founder and CEO Philip Shawe will not be allowed to assert derivative claims against the company’s other founder, Elizabeth Elting, in the latest development to a protracted legal battle over the future of the language services and technology solutions company.

Elting and Shawe, former college roommates who were briefly engaged to be married, founded TransPerfect in 1992, but have turned to the Delaware Court of Chancery for a business divorce, as their tumultuous personal relationship has caused the state of their company’s management to devolve into complete disarray.