You need to report him to the Bar Association, and look into hiring an attorney for a malpractice action.

Was it legal for my wife after we had separated to forge my signature on a government check to cash it without me knowing

Forgery is a crime. If you have to decide whether to report it.

In my experience they are usually sent back stateside. It is up to the command.

Your best bet is to get your mental health provider to advocate for you.

I see no grounds for a lawsuit based on these facts.

Is it okay for a federal agency committ fraud, by deceiving their client, for personal gain?

Unfortunately I can't really understand your question. This is a general Q&A forum, and it not designed for intricate legal matters.

None of us can predict what a judge will do, but it is up to them whether to dismiss.

If you agree to it, they can require it.

It would make sense that incident is why your insurance is so high.

You should use the Find a Lawyer tab above and hire a local defense lawyer.