Photographer: Jeenah Moon/Bloomberg Bill Ackman’s Pershing Square is facing a shareholder lawsuit challenging a deal it struck last year with real estate company Howard Hughes Holdings Inc. aimed at eventually creating a business similar to Warren Buffett’s Berkshire Hathaway Inc. Ackman “coerced and bullied” Howard Hughes directors into an unfair deal that disadvantaged minority investors, according to a proposed class action lawsuit unsealed on Friday in Delaware Chancery Court. The deal was done at an ...