A summary of Southern California-related business litigation developments during the past week.

Health Insurer Sued Over Cancellations: A class-action suit was filed Tuesday against Great Republic Insurance Co. for its cancellation in May of health insurance to about 14,000 customers. The breach-of-contract suit was brought in Los Angeles Superior Court. It is on behalf of those covered under a master policy for group insurance who were being treated for an insured medical condition when Great American canceled. The policy expressly gave Great American the right to cancel coverage. But the suit contends that the insurer “devised a scheme” to deprive the insured of their coverage by terminating the policy, then offering a conversion policy with limited coverage. At the time of the cancellations, claims were exceeding premiums, Great Republic attorney John Chakman said. (Filed July 17, 1990. Case No. BC005960)