Mediator shall be compensated at the rate of $350.00 an hour for cases involving one Plaintiff and one Defendant, two parties. For cases involving three parties, the mediator shall be compensated at the rate of $400.00 an hour. If there are four or more parties, the mediator shall be compensated at the rate of $450.00 an hour. Parties represented by the same attorney and having similar legal and factual identities (e.g., husband/wife, employer/employee) shall be treated as one.