A Windsor law firm has been retained to investigate the viability of a class-action lawsuit on behalf of current and retired employees with Windsor area school boards.

Sutts, Strosberg LLP will access the viability of a class action for the past and present employees impacted by post-retirement health and welfare benefits being terminated after age 65.

The Greater Essex County District School board and the Windsor Essex Catholic District School Board announced Monday the change would take effect Aug. 31, 2014.

The public board says they have been informed by the Ministry of Education that their negotiated contracts are not compliant with the Education Act and they must follow the act.

Approximately 300 retired public board employees and 258 retired Catholic board employees will be impacted by the changes.