hager sharpGarry Curtis has resigned as president and CEO of Washington-based Hager Sharp to return to client duties for the firm, known for its government and non-profit PR work.

Lynne Doner Lotenberg, who joined HS in 2011 and heads its strategic planning and research unit, was named interim CEO of the firm, which has 65 staffers in the capital and is marking its 40th anniversary.

"It’s now time to move away from the executive leadership role and return to focusing my time on working for clients and causes,” said Curtis, a 20-year HS alum who took the reins in 2008 on the death of founder Susan Hager.

Lotenberg previously shared management duties with EVP Debra Silimeo and Jim Healy.

Hs, which had $7M in billings last year, acquired the D.C. office of Chicago-based Lipman Hearne in August.