O'Hagan Meyer | 17,308 followers on LinkedIn. Proven Results. Exceptional Client Service. | As a national law firm defending corporations, non-profits, associations and their officers & directors in every manner of litigation, O'Hagan Meyer provides individualized services that clients expect when defending cases against them. "Our clients require the highest level of service," says partner Kevin O'Hagan. The firm understands that a client's time and money is valuable.