Sarah Kahn practices in the area of corporate and securities, with a focus on mergers and acquisitions. Sarah has represented clients in a broad range of industries in connection with mergers and acquisitions of both private and public companies, including manufacturers, technology developers, and service providers, with special experience in mergers and acquisitions for clients in international aerospace and defense. She also counsels clients in connection with their joint ventures and on matters of national security, including reviews before the Committee on Foreign Investment in the United States (CFIUS) and the structuring and negotiation of foreign ownership, control or influence (FOCI) mitigation arrangements under applicable national industrial security regulations.

Chambers USA has repeatedly recognized Sarah, having highlighted her as an "expert in advising companies working in defense, aerospace and government services on M&A," with "experience and ability [that] are a key draw for transactional work," and quoted clients who noted "[s]he is a delight to work with – smart, savvy, practical and tough!," "[s]he does a marvelous job at mastering the complexities of a deal and converting them into advantages for her client," and have described her as "an 'invaluable' resource" and "elite business attorney" who is "smart, easy to contact, [with] practical, commercial good sense," and "an expert in her field, she thinks creatively about difficult transactional issues and leaves no stone unturned," noting that she is "always thinking about our matters and coming up with creative solutions," and "is smart, organized, efficient, constructive and collaborative." Clients have also praised Sarah's "amazing rapport and great relationships with regulatory staff," her "phenomenal" knowledge in the national security space, as well as "her 'superior interpersonal skills, availability, responsiveness, and broad knowledge base.'" Additionally, clients report that Sarah "understands the business imperatives" and "provides excellent client service," noting "she is highly responsive, readily available, collaborative, and provides needed advice quickly."

Ms. Kahn was named the 2009 Top Washington Lawyer-Corporate M&A by the Washington Business Journal; named a 2013 finalist for Up and Coming Corporate/M&A Lawyer of the Year in the Chambers USA Women in Law Awards, named to Euromoney's 2013 Expert Guides: Guide to the World's Leading Women in Business Law, and repeatedly recognized by Chambers and The Legal 500 for her M&A work.