My brother slapped his girlfriend and she called the cops but didn't press charges will he still go to jail

It’s possible not probable at this time.

Can I ask for financial help from my father if I am over 18?

You can certainly ask, but he has no legal obligation.

At 18, no. At 17, yes CPS can detain.

Can a mother who lost physical and legal custody by Cps to non offending father get 50/50 in mediation??

It’s unlikely, but she has a legal right to try.

Is this situation extortion in anyway because I feel like I'm being extorted?

Child need support from both parents. You can calculate child support online by using income and custody time. Hopefully she can find a job soon to...

Can I cease contact with a custodial parent who is being verbally abusive and unreasonable

Communicate only through Talking Parents. Perhaps an agreed upon friend or family member can be present during exchanges? Or perhaps you can...

More facts would need to be known to properly asses this case.

Can I file for visitation rights if my grandsons are in foster care waiting to be adopted?

You may want to hire an experienced child welfare attorney to file a motion for visits under welfare and institutions code 388.

Her assumption is incorrect. Shoplifting is still a time after she leaves the store without paying.

How does custody work if ur two sons were put in foster care and the foster parents got guardianship?

Check the guardianship orders to determine whether the bio parents have visitation.