Most business owners know not to bring personal issues to work, but that has been especially difficult for Agostinho Ribeiro. That is because he runs his company, a law firm based in Danbury, Conn., with his former wife, Valerie Calistro.
The two met in the late ’80s, in law school, and the relationship blossomed in the early ’90s at the firm — Ventura, Ribeiro & Smith — where Mr. Ribeiro was essentially the chief executive. They were married in 1998, and soon after, Ms. Calistro took a more active role in running the company’s operations. Together, they built the business into what is now a 50-person operation with an emphasis on civil litigation.