The key question here is are you working in the US and receiving US sourced compensation here. If you are visiting because of your Polish company...

Japan has a very heavily regulated medicine market. You should consult with their embassy/consulate or an international lawyer who deals with...

She could file a civil claim against you in the country of jurisdiction. It's not a police matter.

This is an immigration question. Pass to that area.

That will depend on the divorce decree. Consult your lawyer.

An American (i.e., California) power of attorney can be valid in Mexican with an apostille and a legal translation, due to the Hague Convention....

As my colleagues have noted, these are heavily regulated materials and require close scrutiny from Customs, including as regards origin. You need...

This is an immigration question. Pass to that area.

This is an immigration question. Pass to that area.

I agree with my colleague. Also there are a number of interntional lawyers in the Us who deal with some matters. Certainly some in the Seattle area.