PLEASE HELP? I am an ADHD single mother of three? The police took my kids and they are in danger!?

I need HELP!!! I am an ADHD mom with 3 kids and single and one child with ADD. My 12 year old started hitting me and his younger siblings and got rewarded by ex husband. My middle son with ADD talks to the school counseler and lied saying I was hitting him for attention like his brother. DHS came to my house in which they said was very nice back in Nov. where he admitted to lies and i was told to call police if i was ever hit again. All of my kids were removed by the cop and DHS never investigated report and all 3 of my kids were removed for my son punching me and doing what the state of michigan said. They were eventually placed with their abusive fathers and  my 5 year old little girl could be in danger. My lawyer is not willing to fight my case and my kids are suffering. i am a good mom. I would never hit them and my house being in disarray on the police report was reason enough for this. They are holding my ADHD against me and not working with me at all. I need legal help NOW!!!!!!!!! It has been almost four months please help me. How can Wayne county do this?