By Brittany Hobson THE CANADIAN PRESS WINNIPEG- The chief of a remote First Nation in northern Manitoba is proposing a national class-action lawsuit against the federal government for failing to address the housing crisis on reserves. Chief Elvin Flett, of St. Theresa Point First Nation, is seeking $5 billion in compensation, as well as an order that the federal government comply with its obligation to provide adequate housing on First Nations. “Most homes on reserve are falling apart and many are infested with mould and other toxins. Our lack of housing on reserve forces generation after generation to cramp together under the same roof,” Flett told reporters Monday. “This is about broken promises, including the treaties, and the honour of the Crown to act and the many promises made to our people.”…