This is a legal Q&A site rather than a jobs board. You will have to call local attorneys - likely many - before you find someone willing and able...

This is a site for US based lawyers. You would need to contact counsel in BC.

There is a lot to unpack there but I do not see a link between your illness and the conditions of the hotel.

Yes they can so, if contacted by their lawyer, notify your homeowner's insurance immediately.

No, because there are no damages. However, you may wish to report this behavior to the state licensing board.

No. The injuries you describe would not warrant any legal action in my opinion.

You do not ask a question. You may wish to repost.

It is unclear what you are asking. You may wish to repost with some details and context.

Perhaps. This link explains further: https://www.ssa.gov/pubs/EN-05-11051.pdf

Yes you can and you must since nobody will be doing so on your behalf.