Tressler LLP is a national law firm headquartered in Chicago, with eight offices located in five states – California (Los Angeles and Orange County), Illinois (Chicago, Bolingbrook, Edwardsville), New Jersey (Morristown), New York (New York City) and Pennsylvania (Pittsburgh). Tressler is comprised primarily of attorneys who devote their practice to the representation of the insurance industry in coverage analysis and resolution, litigation, underwriting consultation, product development, claims management and reinsurance.