Not enough information, really. Either party may file a peremptory before the first contested hearing or order (it is a bit more technical, but that is the gist). If a ruling has already been made, disqualifications are only allowed "for cause," which is a tough standard, and generally does not include "I don't like the ruling that was made."
There is no "form." I suggest a frank discussion with a family law specialist.
Answered on Aug 16th, 2014 at 8:29 PM