Domestic abuse in Fl

I am a unmarried mother with three children. My finance is the father of the two youngest children. Why I stayed with him is beyond me, guess I was hoping he would change but that didnt happen. He was verbally and emotionally abusive to me. Told me when I could go someplace, not allowed to work, didnt want me to have friends, and the friends I had he disapproved of. He bought a house when we were together, of course my name is not on it. He has a car, I dont. If I wanted to go to the grocery store alone, I had to find a babysitter, he wouldnt watch the children. I went to the mall with my girlfriend one day, was gone one hour, and had a sitter. Came home and he began questioning me as to what we did, where we were, and made several calls to her cell phone, checking on me as usual. He had went to get the baby, he is 10 months old and brought him home, but my other two daughters were still being watched by a sitter. He started calling me names, and I told him it was over, I had enough. Gave his ring back, and asked him for the telephone so I could call my mother to come get me and the children. He threw the phone at me, hitting me in the head. I then called my mother and asked her to come and get us, told her what happened. I was outside talking to her on the phone and he locked me out of the house. He told me it was his F ing house, his Fing car and his Fing children. Meanwhile he took my 10 month old son to his mothers, just had to go out our back door, through the yard to her house. He returned and let me in the house. I immediately went to find my son gone, and knew he must have taken him to his mother. I rushed for the back door, and so did he. He pushed me down, and I got up and ran to his mothers house, only to be met by him at the door, and shoving me, I did try to defend myself and hit him. I called the police because he didnt give me my children. His father had been in the shower, jumped out in his underare, and the father and my ex finace both grabbed me by my arms, and pushing me. I have many bruises from that. The cop arrested me for battery because I said yes, I did hit him in defense. My ex finace was not arrested. While in jail my finance filed a injunction, which my attorney and I have went to court for. His father lied and said he saw it all, but didnt. I showed my bruises, and the case was dropped. I still have not went to trial for battery, which is crimminal in Florida, and dont know what to expect. Since he filed the injunction, he kept my two children from me. My attorney filed for immediate return of the children to me, since paternity was not established. We did go to court after the children were returned to me, and the Judge ordered mediation. Prior to this hearing with the Judge, my attorney told him what I offered, every other week end visits, one day over night visits, and rotating holidays. 500.00 child support per month. He told my lawyer I was only interested in money. Not true, I thought that was a fair and small amount for child support. Since then he called my mother and told her, he would drop battery charges if I notarized a statment giving him 50 percent custody of the children. NO WAY. The two children in which he is father to are 10 month and three years old. My oldest daughter 9 just told me that he smoked pot when he was driving with her in the car taking her fishing. She described a bowl to me. I asked why she didnt tell me this before and she said you didnt ask. She said she saw him smoke at other times. He has already told my mother he will not agree with my terms at mediation. What happens after that. I dont have money for attorneys. My youngest daughter rarely asks about her dad, although I have let her call him, more than he did when he had the children for 17 days. What happens if mediation is not agreeded on. How much will a attorney charge. I dont think he has a attorney at present time. I live with my mother, and she has a big house and loves my children. While in his mothers care, my youngest daughter left her house and walked to the lake by herself, and once before she couldnt find her and she was locked in her car for two hours. I dont want his mother having the children without supervision. Please help and suggestions would be appreciated. Also do you think I should get counseling for my children, the older child and the three year old. My three year old told me, my daddy said you threw a shoe and hit him in the face with it, that is why you have to live with your mommy. She also told me my mama told me you had to go to jail. Why in the world would a parent or grandparent say things like this to a child of three. Im in counseling now for myself. Im trying to find work, but its hard with three children, and no car. Thank you and sorry so lengthy. Im also trying to go back to school.
Thanks you

Man,

Someone needs to do some sentence grammar. Know one is going to read all that mashed up info!

Child support cannot be negotiated against threats to file any kind of charge etc.--that is illegal and it is blackmail, a crime itself.

Stand firm!