If asked about your H-1B spouse's whereabouts you'll know what to say.

After 5 years have passed since your divorce, yes

For a TN the employer's business premises/headquarters have got to be located in the USA.

This sort of documentary and oral evidence can only be submitted during the interview.

I completely agree with the previous answer.

We have experienced a mere few weeks wait after such site visit. Not more.

CDJ is highly unpredictable and difficult to deal with.

Yes to AVR, no to any type of impact on visa application outcome.

No - only for US citizens. Spouse and children yes, parents no.

No, not possible to adjust status in the USA without having done the COVID shots.