Can a person holding an H-4 Visa work as an unpaid-intern in a company?

It must be volunteer work. An intern may be receiving some type of benefit such as college credit.

Correction to K1 visa question posted 10 minutes ago...(must read K1 and K2 visas respectively...)

Guess I missed the previous post so I don't kniw what you are talking about.

I am on H4 dependent visa. Can I have K-1 interest in a US based LLC company. ?

Have an experienced immigration attorney review your exact plans. You may be elligible for another type of visa the allows more leeway in business.

Remedy for Denied Cases

You do not provide enough information to answer your questioin. Your attorney should have all the facts and be the best person to ask. If you are...

I came into US with a J1 visa .. Can I apply for a B2 visa while I am in USA?

Yes

Immigrant who wants a full custody and financial child support

If you are in K1 status you never married your fiance. Technically you are supposed to leave the country if you do not marry your fiance with in 90...

The USCIS can make a finding of marriage fraud but it is not likely since you have already left the country. You will not be brought back to the US...

What is the best way to get my Philippine same-sex partner, and potential caregiver, from the Philippines into the USA legally?

The US government does not recognise same sex marriage for immigration purposes. Your partner may want to consider various tpes of employment...

Marrying to u.s. citizen

No. you must have a sponsor who is a USC or PR. Once you have employment authorization your income may be considered as household income.

Emigration to the united states

Check the answer to your other post. You have a number of possibilities but more facts are needed to determine if you qualify.