Dennis A. Thayer, Attorney at Law, is a professional law firm that has been providing expert legal counsel to Riverside residents since 1976. Our practice covers a wide cross-section of the law that includes anything from products liability to will contests. Please browse our site to learn more about Mr. Thayer and the capabilities of our law firm. Then, contact us for knowledgeable, affordable legal counsel.. Estate Planning Insurance Labor Relations Litigation/Trial Personal Injury Product Liability