A group of 12 lawyers, including four partners, have joined Am Law 200 firm Robinson & Cole in New York and Miami in the latest round of defections from the reeling Sedgwick, which has lost more than 30 partners so far this year.

The team is led by New York-based partners Lawrence Klein, a highly regarded insurance coverage expert who is said by one source to have a “massive” practice representing clients like insurance giant American International Group Inc., and Michael Bernstein, who has a national practice handing litigation stemming from employee health care and benefits plans.