A former client of Locke Lord Bissell & Liddell has sued the Dallas-based firm, alleging the firm’s negligence in handling a federal court declaratory judgment action led to a default judgment against it.

In a petition in CH MM Denton LLC v. Locke Lord Bissell & Liddell, the plaintiff alleges the firm failed to keep it apprised of developments, including discovery requests and depositions, in First Regency Enterprises Inc., et al. v CH MM Denton LLC, which was filed in U.S. District Court in the Northern District of Texas. As a result, the plaintiff alleges, a federal judge entered a default judgment against it in 2009 in the federal suit, striking its pleadings, dismissing its counterclaim and giving $2 million in escrowed money — the subject of the underlying suit — to other parties in First Regency.