That's what "dismissed with prejudice" means. She cannot file that action again. She can, however, move to have the dismissal set aside or she can file an appeal.

Unfortunately, the court will presume that she read and understood what she was signing when she signed the voluntarily dismissal. No way to predict the outcome.

No way to predict that either.

If the cows came home, that part of the question is irrelevant.

If they didn't then the value of the lost cows is likely a separate action for negligence if it wasn't included in the quiet title action.

Absolutely agree with that.