Green Mountain Insurance Company, Inc. v. National Interstate Insurance Company and Gary Boone, Party-in-Interest

UNITED STATES DISTRICT COURT DISTRICT OF MASSACHUSETTS __________________________________________ ) ) GREEN MOUNTAIN INSURANCE ) COMPANY, INC., ) ) Plaintiff ) ) v. ) ) Case No. 25-cv-10467-DJC ) NATIONAL INTERSTATE ) INSURANCE COMPANY, ) ) Defendant ) ) and ) ) GARY BOONE, ) ) Party-in-Interest. ) ) __________________________________________) MEMORANDUM AND ORDER CASPER, C.J. October 28, 2025 I. Introduction Plaintiff Green Mountain Insurance Company, Inc. (“Green Mountain”) has filed this lawsuit against Defendant National Interstate Insurance Company (“NIIC”) seeking declaratory judgment…