Katharine Martin of Wilson Sonsini Goodrich & Rosati was among the leaders of a team representing LinkedIn Corp. in its $26.2 billion sale to Microsoft Corp. She also led the team representing LifeLock in its $2.3 billion sale to Symantec and led another team representing Brocade Communications in its $5.5 billion sale to Broadcom Ltd.

The No. 1 issue that keeps me and my clients up at night is …