A German company that offers commercial and personal insurance services has sued a Greenwich solo practitioner for $1.8 million, claiming legal malpractice related to a car accident that paralyzed a client.

Wurttembergische Versicherung AG sued the J. Michael Lewis Law Offices and its principal, J. Michael Lewis, over its representation in an insurance claim brought by Safeco Insurance Co. of Illinois. Safeco sought coverage for damages incurred while defending and settling a civil action in Washington state.

The lawsuit—filed Friday in the U.S. District Court of Connecticut in Bridgeport—claims Lewis committed legal malpractice during the course of making coverage recommendations and asserting defenses, drafting correspondences and raising arguments in litigation.