Benjamin S. Vaughan

Eric Zimmerman is a recognized Medicare law and policy authority and registered lobbyist who represents clients before Congress and administrative agencies, and helps clients navigate federal legislative and regulatory processes related to Medicare coverage, coding, reimbursement and compliance. He primarily counsels and represents hospitals and health systems, ambulatory surgery centers, clinical laboratories, pharmaceutical, biotechnology and device manufacturers and suppliers, medical trad...

Kelly Behr is an associate in the Affordable Housing practice group. She works with affordable housing clients across the country on transactional matters involving multifamily affordable housing acquisition, construction, ownership, development, financing, rehabilitation and preservation. In addition to her affordable housing practice, Kelly regularly provides pro bono representation to domestic violence victims seeking protective orders. What do you focus on? I work with clients on all aspe...

S. Mohsin Reza is a lawyer recognized by Best Lawyers in the practice area of Commercial Litigation. S. Mohsin practices law in McLean, Virginia Best Lawyers has recognized S. Mohsin Reza since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which S. Mohsin Reza is held by other lawyers.

John S. Decker P.C. is a lawyer recognized by Best Lawyers in the practice area of Energy Law. John S. practices law in Washington, District of Columbia Best Lawyers has recognized John S. Decker P.C. since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which John S. Decker P.C. is held by other lawyers.

Bill Christiansen specializes in biotechnology patent matters, with particular emphasis on U.S. and international patent procurement, strategic management of patent portfolios, investment due diligence, early stage company counseling and competitive patent position analysis. He received his B.S. in Biochemistry and Biophysics (with honors) from Oregon State University (1991). After obtaining a Ph.D. in Biochemistry/ Biophysics/Molecular Biology from the University of Notre Dame (1995), for wh...

Jonathan C. Bond is a lawyer recognized by Best Lawyers in the practice area of Appellate Practice. Jonathan C. practices law in Washington, District of Columbia Best Lawyers has recognized Jonathan C. Bond since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jonathan C. Bond is held by other lawyers.

Gerald A. Morrissey III is a lawyer recognized by Best Lawyers in the practice area of Admiralty and Maritime Law. Gerald A. practices law in Washington, District of Columbia Best Lawyers has recognized Gerald A. Morrissey III since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Gerald A. Morrissey III is held by other lawyers.

Ryan P. O’Quinn Ph.D. is a lawyer recognized by Best Lawyers in the practice area of Biotechnology and Life Sciences Practice. Ryan P. practices law in Reston, Virginia Best Lawyers has recognized Ryan P. O’Quinn Ph.D. since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Ryan P. O’Quinn Ph.D. is held by other lawyers.

David W. Foster is a lawyer recognized by Best Lawyers in the practice areas of Litigation and Controversy - Tax and Tax Law. David W. practices law in Washington, District of Columbia Best Lawyers has recognized David W. Foster since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which David W. Foster is held by other lawyers.

Azim Chowdhury advises domestic and international corporations on regulatory compliance with the U.S. Food and Drug Administration (FDA) and its global counterparts, particularly focusing on vapor, nicotine, tobacco product and cannabis/cannabidiol (CBD) regulation, as well as food contact materials. He counsels tobacco, e-cigarette, e-liquid and CBD manufacturers, distributors, retailers, suppliers, and trade associations on matters relating to regulatory compliance, as well as public policy...