(1) Subject to this Part, if proceedings may be commenced by one or more of those persons as representing some or all of them.(a) 7 or more persons have claims against the same person; and(b) the claims of all those persons are in respect of, or arise out of, the same, similar or related circumstances; and(c) the claims of all those persons give rise to a substantial common question of law or fact (2) Representative proceedings may be commenced (a) whether or not the relief sought (i) is, or includes, equitable relief; or(ii) consists of, or includes, damages; or(iii) includes claims for damages that would require individual assessment; or(iv) is the same for each person represented; and(b) whether or not the proceedings (i) are concerned with separate contracts or transactions between the defendant in the proceedings and individual group members; or(ii) involve separate acts or omissions of the defendant done or omitted to be done in relation to individual group members.