Commercial insurers are engaged in coverage language rewrites en masse this year, but “The Great Policy Rewrite” faces some serious obstacles, a coverage lawyer said recently.

Even if carriers are just seeking to clarify language, they need to be mindful of the potential impact on the interpretations of prior forms, Michael Byrne, a partner in the New York office of McDermott Will & Emery, said during a webinar hosted by InsurTech RiskGenius, explaining one of four complications he sees carriers running up against.