I am an American citizen, and my wife is a foreign citizen. We are moving back to the US and want to buy a house.

The sale of your property abroad will not have any effect on your wife's application for an immigrant visa/green card. The fact that you as the US...

I am on valid h1 effective from 1 oct, i dont have paystub how i convert to h4

If you were paid by direct deposit, you may be able to show payment by your employer from your bank statements. Or if you were paid by check you...

P;ease see the details

There are no guarantees, but if you didn't have another recent trip to the U.S. prior to September 2014, you should be OK.

I want to end the contract the i have signed with my employer before joining.

You probably should inquire with a labor/employment attorney. But if your contract says that you need to give 45 days notice, then the fact that...

Yes, once you are married your spouse can file an immigration petition for you and you can file an application to adjust status, along with...

Can someone apply for I130 for mother at the same time as the N400 for self? Or should the PR wait until they become US Citizen?

No, the N-400 and an I-130 for one's parent cannot be filed at the same time. First your sister in law will have to complete the process of...

If I change status to e2 visa, can I reenter USA with the same status?

Only if you obtain an E-2 visa in your passport at the US consulate in your home country.

Can I apply for Form I-485 "Green Card" since I'm a child of an immigrant visa holder and I'm inside the U.S.

I think your situation would be best reviewed through a more detailed consultation with an immigration lawyer. If you were able to file an I-485,...

It say list the location of the US embassy or consulate or USCIS office where you became a lawful permanent resident

If you obtained an immigrant visa to come to the U.S., then you would list the U.S. embassy or consulate that issued you the immigrant visa. If on...

Regarding V1 non-immigrant visa in senate bill

Whatever is in the Senate bill may never become law, so there is no real answer to your question at this time. At this time there is no reason to...