Yes...............................................................................................

One envelope, ok. Two pleadings require two proofs of service.

It's not too late as a matter of law but it may be too late as a matter of your credibility.

I have just read section 5150 and see no basis for you to be billed for an involuntary hold. However, a lawyer doing criminal defense work may know...

Yes, because the settlement from B is a non-exempt asset of yours.

You are describing not one but multiple government regulated businesses.

The correct question is "can I?" not "how much can I get?" No analysis is possible until far more facts are known.

You have no legal recourse whatsoever.

I am pretty sure this is your second posting today. None of what you post are legal issues, but more sociology or psychology.

It isn't "fair" but it isn't "illegal". So long as discrimination is not based on belonging to a "protected class" (think race, religion, national...