Idea for Bloomberg

Bloomberg, as a parting gift to NYC, should buy the New York Mets and give them to the City in a way that ensures professional management and insulates them from future sale or  even pressure from City fiscal needs. The obvious model is the Green Bay Packers. The team could effectively be run by real baseball people under the loosest supervision of a board of directors appointed by mayors and approved by the City Council for long terms and who would have to be qualified/screened - not a difficult process.

Is there a rule in baseball against not-for-profit ownership? Would it be approved by the current ownership or would they be threatened? If so, why?  In a market like NYC, the team should thrive and not-for-profit, professional ownership could make long term plans that would easily rival those of the Red Sox, Yankees and other major market teams.