I am getting an E-3 for a job. I am a sole trader(photography), would I be able to sell my photography service/materials?

Employment authorization would be required to sell photography, provide workshops, in the US. You might seek a US green card. Then you could do as...

Can my mom get a specialized green card?

A reentry permit obtained before departure will preserve a green card for long absences outside the US.

Can I still petition for my parents green card if I’m married and have a child?

A US citizen sponsoring parents with dependents increases the poverty level for I-864 affidavit of support on behalf of sponsored parents.

TN and green card?

You may be admitted as TN despite an F4 petition. Employer green card sponsorship is much faster for TN.

Can I get start my immigration process now?

You should meet with an immigration attorney with your approval notices.

1) request the correction; 2) will not hamper an H1B petition, but you should not travel 3) consult an immigration attorney

OPT expiring soon - how can I stay in my role without H1B?

MSc from the UK does not qualify for STEM. You might consider seeking a new employer.

Can I get a second J1 Visa before 2 years if I have the waiver of the 2 year home residence rule ?

Generally, you would need to go home for 2 year. You may check with the program sponsor. Also, check why the employer is hesitant in sponsoring an...

Do I have to fill up the form I- 693 Medical Exam in order to apply for greencard?

As spousal petitions are taking more than a year at this time you may submit the I-693 at the interview.

Living separate but not divorced; does it hamper green card cancellation?

Living outside of USA and living with my parents in my home country will abandon your green card. Your husband or divorce does not impact your...