David B. Fischer

Keller and Heckman, founded in 1962, has a broad practice in the areas of regulatory law, public policy, and litigation, serving both domestic and international clients. Our firm is a pioneer in the use of interdisciplinary approaches to problem-solving. Since 1971, we have had an in-house scientific staff that works closely with the firm's attorneys on matters of technical complexity. Many of our attorneys also have government experience and expertise in multiple areas of the law.