Writ of detainer. Hire an attorney.

Theoretically you could be charged but if you were the passenger then you have a true defense. Call an attorney now.

Possibly harassment, however, it seems unlikely. Contact an attorney if the police call.

I doubt it will be tapped for a misdemeanor assault, however the victim can show the texts to the State or the police. Call an attorney.

You will be responsible if it was your child.

No one can say for sure, however it is very very very unlikely especially if you have the right attorney. Call one now.

Hire an attorney right away. Do not make any statements to the police. Although this is technically a misdemeanor, it carries up to 10 years in jail.

You can certainly dispute it, however, you are probably responsible for the full rent since you signed the lease. Send notices to the landlord of...

You could be on 10 different leases. Are you asking that if you sign a new leaser are you still responsible to the one that you are on with mom?

Yeah I would cut the cord. File for a wrongful detainer in the district court and hire counsel to do so.