A epic battle between shareholders and their co-op board is unfolding in the Bronx, and it holds lessons for every resident of every co-op in the city.  On one side is a group of disgruntled shareholders at the 273-unit Park Reservoir co-op, a Mitchell-Lama that’s managed by Amalgamated Housing, the nation’s oldest and largest limited-equity cooperative; on the other side is the Park Reservoir co-op board, which is overseen by the state’s Department of Housing and Community Renewal (DHCR).    Read the article…………………………….