486 F.3d 727 SPECIALTY NATIONAL INSURANCE COMPANY, Plaintiff, Appellant,v.ONEBEACON INSURANCE COMPANY, Defendant, Appellee. No. 06-2036. United States Court of Appeals, First Circuit. Heard March 6, 2007. Decided May 23, 2007. John Egan, with whom Susan S. Riedel and Posternak Blankstein & Lund LLP were on brief, for appellant. Peter G. Hermes, with whom Michael S. […]