Exhibit 15 April 30, 1998 Orion Capital Corporation Farmington, Connecticut We have made a review, in accordance with standards established by the American Institute of Certified Public Accountants, of the unaudited interim financial information of Orion Capital Corporation and subsidiaries for the periods ended March 31, 1998 and 1997, as indicated in our report dated April 30, 1998; because we did not perform an audit, we expressed no opinion on that information. We are aware that our report referred to above, which is included in your Quarterly Report on Form 10-Q for the quarter ended March 31, 1998, is incorporated by reference in Registration Statements No. 2-65348 on Forms S-8 and S-16 relating to the Orion Capital Corporation 1976 and 1979 Stock Option Plans, No. 2-80636 on Form S-8 relating to the Orion Capital Corporation 1982 Long-Term Performance Incentive Plan, No. 2-63344 on Form S-8 relating to the Orion Capital Corporation Employees' Stock Savings and Retirement Plan, No. 33-59847 on Form S-8 relating to the Orion Capital Corporation 1994 Stock Option Plan for Non-Employee Directors, and No. 333-44901 on Form S-8 relating to the Wm. H. McGee & Co., Inc. 401(k) and Profit Sharing Plan . We also are aware that the aforementioned report, pursuant to Rule 436(c) under the Securities Act, is not considered a part of the Registration Statement prepared or certified by an accountant or a report prepared or certified by an accountant within the meaning of Sections 7 and 11 of that Act. DELOITTE & TOUCHE LLP Hartford, Connecticut 29