Can she be prosecuted? She is being prosecuted. That answers the question.

The LL is under no obligation to let him out of a binding contract.

A lawyer would need to read the entire case file. It is highly unlikely that he "gave up his rights."

Strangers on the Internet know a lot less than your attorney.

This is a Q&A forum. You can use the Find a Lawyer tab above.

I would call the MSBA ethics line, but IMO, this is an ethics violation.

It sounds like any lawsuit against the hospital would be frivolous, and likely subject that attorney to sanctions.

No. The courts don't get involved in how people interact. You need to decide whether to stay with him. He sounds violent.

No, but you can certainly stay elsewhere next time.

No lawyer here knows all the facts of the case, and none can offer an opinion. Your BF can retain another attorney if he so desires.