John Van Fossen, 43, has joined Barnes & Thornburg’s Grand Rapids, Mich., and Washington offices as a lobbyist and member of the firm’s government services and finances departments. Previously, he was the director of government and public affairs at Clark Hill. He earned his master’s degree from Western Michigan University.


Colleen Heisey, 36, has joined Jones Day’s Washington office as partner in the health care practice. She focuses on food and drug law with an emphasis on advertising, promotion and compliance counseling. Previously, she was a partner at Hunton & Williams. She earned her J.D. from George Washington University Law School.


Peter Blessing, 62, has joined KPMG, the audit, tax and advisory firm, as head of cross-border corporate transactions in the Washington national tax practice. Previously, he was a partner at Shearman & Sterling. He earned his J.D. and LL.M. from Columbia Law School and New York University School of Law, respectively.


Elizabeth Oesterle, 41, has joined Venable’s Washington office as of counsel to the legislative and government affairs group. Previously, she was a government relations counsel at the National Retail Federation. She earned her J.D. from Fordham University School of Law.


Lillian Brown, 41, and Jennifer Zepralka, 41, have joined Wilmer Cutler Pickering Hale and Dorr’s Wash­ington office as partners in the transactional and securities departments and members of the corporate practice. Brown focuses on complex corporate transactions. Zepralka focuses on corporate finance, federal securities law compliance, governance and business transactions. Previously, they were senior special counsel at the U.S. Securities and Exchange Commission. Brown and Zepralka earned their J.D. from the University of Southern California Gould School of Law and the University of Pennsylvania Law School, respectively.