Jonathan S. Jeffress served the District of Columbia as an Assistant Federal Public Defender for 14 years, regularly taking on – and defeating – the Department of Justice and the U.S. Attorney’s Office in court. Jon specializes in representation for clients under investigation for alleged false statements, bribery, and campaign finance violations. Since entering private practice at Kaiser Law, Jon has worked with clients in all phases of federal criminal cases, including thr...

Matt Kaiser is the founding partner at KaiserDillon PLLC. He represents individual and small business clients in commercial litigation , government investigations , and white-collar cases . Before starting KaiserDillon PLLC, Matt worked at some of the best litigation firms in the country - Williams & Connolly and Zuckerman Spaeder. He also worked in the Maryland Federal Public Defender's Office and clerked for United States District Judge Catherine C. Blake. Matt is an adjunct professor o...

Bill Pittard is an experienced lawyer with a unique depth of government and litigation experience. Bill’s practice focuses on representing individuals and businesses with high-stakes problems. He particularly helps clients connected to the Legislative Branch, whether as officials of that branch or as individuals and businesses preparing for congressional hearings or otherwise responding to congressional inquiries. Over the past several years, for example, Bill has helped guide clients t...

William Zapf is a top attorney recognized by Best Lawyers in the practice area(s) of Ethics and Professional Responsibility Law. William, who practices law in Washington, District of Columbia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William is held by other top lawyers in the same geographic and legal practice area.