Can I interview in a different consulate than the one mentioned in my petition?

I would check with the specific consulate.

I am filing for I-130 for my wife. I was wondering about line 14. she does not have a I-94 as she has visa Waiver from Chile.

I would not endeavor to have the form filled via a general online forum as we do not have all the information. I suggest you have a consult with a...

Form 1-130 question, applying for parents and brother-document needed

please see the instructions for I130, it clearly spells out what is needed for parents and sibling I130 applications see...

Can H4 with EAD in process can work as freelance consultant with companies of home country ?

One needs to have the physical valid EAD card to work in the US.

Does an employee with a non-immigrant work visa need to remain with the same company that issued the visa for its duration?

employment based visa's are employer specific. A new employer would have to file a new petition.

You can contact the consulate in UK to see what their most recent policy is.

How can a foreign worker find an employer that is eligible to sponsor an H-2B visa?

please see https://www.uscis.gov/working-united-states/temporary-workers/h-2b-temporary-non-agricultural-workers for information on H2b. I would...

Can I apply for a green card for my dad while he is abroad?

Yes you can file the I130 and once approved the 2nd step will be consular processing. (where he goes for an interview at the US consulate in his...

How does USCIS mail the H1B approvals?

If non-premium processing then it is sent via regular mail.

When should an employment-based visa be applied for--before or after the employee starts working?

The visa has to be approved prior to any authorized work. Please have the employer consult with a qualified immigration attorney. Your friend can...