(1) Subject to this Part, where:
(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 issue of law or fact;
a proceeding may be commenced by one or more of those persons as representing some or all of them.
(2) A representative proceeding 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 proceeding:
(i) is concerned with separate contracts or transactions between the respondent in the proceeding and individual group members; or
(ii) involves separate acts or omissions of the respondent done or omitted to be done in relation to individual group members.