Sandra Seville-Jones, who served as a firmwide leader at Munger, Tolles & Olson for the past decade, died Saturday due to complications from surgery. She was 58.

Seville-Jones joined Munger Tolles as a corporate attorney in 1986. She was elected as a co-managing partner of the firm in 2008 and in that position was a leader in the firm’s expansion efforts, including the opening of a Washington, D.C., office in 2016.