Martin Paisner is set to leave the transatlantic firm after more than 50 years. : Two Bryan Cave Leighton Paisner partners have left its London office, including Martin Paisner CBE, the son of one of legacy firm Berwin Leighton Paisner’s co-founders. Hannah joined Legal Week in May 2018 after finishing her degree at Kingston University. Her areas of focus are corporate, M&A, private equity and restructuring at UK and City-based US law firms.