Here is a blurb from an article [needs Lexis subscription]:
PHOENIX – A professional liability insurer is entitled to deny coverage for an underlying legal malpractice action against a law firm because the insured made a material, factual misrepresentation in its insurance application, a federal judge found Feb. 27 (James River Insurance Co. v. Hebert Schenk P.C., No. CV-05-1213, D. Ariz.; 2006 U.S. Dist. Ariz. 8523). Full story on lexis.com