(1) A party has the right, but is not required, to attend a mediation hearing. If scars, disfigurement, or other unusual conditions exist, they may be demonstrated to the mediation panel by a personal appearance; however, testimony shall not be taken or permitted of any party.
  (2) The Michigan rules of evidence shall not apply before the mediation panel. Factual information having a bearing on damages or liability shall be supported by documentary evidence, if possible.
  (3) Oral presentation shall be limited to 15 minutes per side unless multiple parties or unusual circumstances warrant additional time. The mediation panel may request information on applicable insurance policy limits and may inquire about settlement negotiations, unless a party objects.
  (4) Statements by the attorneys and the briefs or summaries are not admissible in any subsequent court or evidentiary proceeding.