You can't. The contract is between the two of you and the lender.

Unfortunately, your landlords are still entitled to rent, unless there is a clause in the DE lease that lets you out if you move. Have a DE...

Your question doesn't seem to have anything to do with the facts you posted.

you can both be convicted on one event................

Did your lawyer object? Have you asked your lawyer? We don't know what happened.

Lawsuits are expensive and time consuming. You can sue, but no way to know if you will win, and whether you can collect if you do.

The same way you sue anyone: You hire a lawyer, pay their fees, and they do it. It is like asking how you perform surgery on yourself. You don't.

You are not going to get anyone here to opine on your limited facts.

Your question makes no sense as written. Not enough info.

These are questions for your lawyer. We don't know your case.