"Although city retirement benefits are enshrined in Michigan's constitution, there is no clear road map for what will happen in a Chapter 9 bankruptcy, experts said. The question is made more complicated by the fact that it is unclear who has the legal authority to negotiate on behalf of the retirees.... 'The appointment of a retiree committee is adequate representation for these individuals and to facilitate the city's restructuring of its pension and other post-employment benefit liabilities,' [Kevyn Orr, Detroit's state-appointed emergency manager,] said ... Orr faced three separate lawsuits from current and retired workers trying to bar his attempts to file Chapter 9."