Arizona judge laws, rules, and regulations? in a bad child custody case?!?!?

okay.... i need some advice and help regaurding a horrible child custody case. let me explain a little..... father walks in on mother in bed with someone else and leaves the home. she moves in with family and for the next 2years mother keeps kids away from father only visiting every now and then. obviously... he shouldve been to court asap but not court saavy and really didnt know what to do. mother also got together with fathers NOW former best friend while father stayed single for almost 2 years. father fell in love and filed for divorce 2011 january... week later mother responded as well as filing restraining order against father.... to prevent joint custody of parents. during mediation ( which mediator ended up being mothers aquaintance) told father a bunch of false information which they agreed upon. judge approved it and weeks later got final papers in mail which everything was not included like mediator had said as well as her legal advice to father was untrue. tried to modify and judge threw out and kept restraining order. mother has lied... been in contempt... and recently done emergency custody order to keep kids away from father permanently stating kids were in danger. they have a special needs child which is in/out of hospital constantly. father took child to hospital in his care and mother fully blamed him to the fullest. during emergency temp. custody hearing judge is a mother anti father judge let mother speak about everything and anything she wanted as well as her mother. she has an attorney. father was not allowed to speak of anything unless asked. mother had so many false accusations and father showed hospital records of the proof. in the end father got suervised visits and mother got her way. restraining order remains, father has no rights to medical records or childrens information, he has to pay child support as well as $400 a month just to see his kids when father is on a fixed income and mother lives off child support and their special needs childs ssi money. this judge is extremly bias and lets mothers do what they want. does anyone know any laws that judges cant do and how or what we can use to tell the courts we need a new judge. this judge has an excellent reputation for being a mother judge. please someone help us. we are trying to look for fathers rights advocate or anything.