Yes, in fact you can have a private bill to make one a permanent resident or U.S. citizen.

You should see an immigration attorney to determine whether the crime may prevent you from returning to the U.S.

You do not need to submit the tax return with the application. You can bring it to the interview.

You can apply for an F1 but you may have an impossible time proving nonimmigrant intent if you filed for a green card in the U.S.

You can continue following up with USCIS until there is a decision.

Three months is nothing. I have cases waiting to be scheduled for two years or so. They are very, very backed up in India, under cover of 'COVID".

It's not international travel to go from the U.S. straight to Puerto Rico. It is not recommended to do so if one is undocumented since CBP...

It depends on the facts. There is not enough information here to determine what happened.

It is not recommended to change employers one month after getting one's green card. As a rule of thumb, try to wait at least six months, to avoid...

You are not the petitioner and your brother in law must file an i-864 or you cannot immigrate. Perhaps you should have your wife file a petition...