My kids and I use to live with Jon. Jon started to hit my kids. Dss took them away and said I neglected them. They forced me to sign over custody to my husband by saying they would prosecute me for abuse. I left Jon. My husband turned my kids against me. How do I prove I'm a good mom and get them back?

Talk to your case worker. They can tell you what steps you have to go through to prove fitness. Or hire an attorney.

But frankly, I don't think your husband (were you ever divorced?) had to do much to turn your kids against you. If you let them be abused without objecting they would have turned all by themselves. Reading between the lines here, it appears you took them away from their father to live with another man and let that man abuse them. I'm not surprised they were taken away. At this point I would be trying just to get visitation, not custody.