Lawyers feud over $2m

Lawyers are fighting over legal settlements and fees involving the fatal Big Dig tunnel collapse and the Clark Rockefeller kidnapping case.High-profile lawyer Jeffrey Denner has been sued by a former colleague who claims he’s owed at least $1.75 million for rounding up a number of clients for their Boston firm.Timothy J. Bradl, who worked as an attorney at Denner’s firm for nearly four years,